UBUNTU-CVE-2026-42945

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Source
https://ubuntu.com/security/CVE-2026-42945
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-42945
Upstream
Downstream
Related
Published
2026-05-14T00:00:00Z
Modified
2026-06-03T17:59:13.707266790Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - high
Summary
[none]
Details

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

Affected packages

Ubuntu:22.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.18.0-6ubuntu14.11

Affected versions

1.*
1.18.0-6ubuntu11
1.18.0-6ubuntu12
1.18.0-6ubuntu14
1.18.0-6ubuntu14.1
1.18.0-6ubuntu14.2
1.18.0-6ubuntu14.3
1.18.0-6ubuntu14.4
1.18.0-6ubuntu14.5
1.18.0-6ubuntu14.6
1.18.0-6ubuntu14.7
1.18.0-6ubuntu14.8
1.18.0-6ubuntu14.10

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-auth-pam"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-cache-purge"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-dav-ext"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-echo"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-fancyindex"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-geoip2"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-headers-more-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-ndk"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-subs-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-uploadprogress"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-upstream-fair"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-nchan"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-rtmp"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "libnginx-mod-stream-geoip2"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.11",
            "binary_name": "nginx-light"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:24.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.24.0-2ubuntu7.8

Affected versions

1.*
1.24.0-1ubuntu1
1.24.0-2ubuntu1
1.24.0-2ubuntu2
1.24.0-2ubuntu3
1.24.0-2ubuntu4
1.24.0-2ubuntu6
1.24.0-2ubuntu7
1.24.0-2ubuntu7.1
1.24.0-2ubuntu7.3
1.24.0-2ubuntu7.4
1.24.0-2ubuntu7.5
1.24.0-2ubuntu7.6
1.24.0-2ubuntu7.7

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.8",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:25.10
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.28.0-6ubuntu1.3

Affected versions

1.*
1.26.3-2ubuntu1
1.26.3-3ubuntu1
1.26.3-3ubuntu2
1.26.3-3ubuntu3
1.28.0-3ubuntu1
1.28.0-4ubuntu1
1.28.0-6ubuntu1
1.28.0-6ubuntu1.1
1.28.0-6ubuntu1.2

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.3",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:26.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.28.3-2ubuntu1.1

Affected versions

1.*
1.28.0-6ubuntu1
1.28.1-2ubuntu1
1.28.1-3ubuntu1
1.28.2-2ubuntu1
1.28.3-2ubuntu1

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.28.3-2ubuntu1.1",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:Pro:14.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.6-1ubuntu3.9+esm6

Affected versions

1.*
1.4.1-3ubuntu1
1.4.3-2ubuntu1
1.4.4-1ubuntu1
1.4.4-2ubuntu1
1.4.4-4ubuntu1
1.4.5-1ubuntu1
1.4.6-1ubuntu2
1.4.6-1ubuntu3
1.4.6-1ubuntu3.1
1.4.6-1ubuntu3.2
1.4.6-1ubuntu3.3
1.4.6-1ubuntu3.4
1.4.6-1ubuntu3.5
1.4.6-1ubuntu3.6
1.4.6-1ubuntu3.7
1.4.6-1ubuntu3.8
1.4.6-1ubuntu3.9
1.4.6-1ubuntu3.9+esm1
1.4.6-1ubuntu3.9+esm2
1.4.6-1ubuntu3.9+esm3
1.4.6-1ubuntu3.9+esm4
1.4.6-1ubuntu3.9+esm5

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-light"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-naxsi"
        },
        {
            "binary_version": "1.4.6-1ubuntu3.9+esm6",
            "binary_name": "nginx-naxsi-ui"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:Pro:16.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.3-0ubuntu0.16.04.5+esm7

Affected versions

1.*
1.9.3-1ubuntu1
1.9.6-2ubuntu1
1.9.6-2ubuntu2
1.9.9-0ubuntu1
1.9.9-1ubuntu1
1.9.10-0ubuntu1
1.9.10-1ubuntu1
1.9.11-0ubuntu1
1.9.11-0ubuntu2
1.9.12-0ubuntu1
1.9.13-0ubuntu1
1.9.14-0ubuntu1
1.9.15-0ubuntu1
1.10.0-0ubuntu0.16.04.1
1.10.0-0ubuntu0.16.04.2
1.10.0-0ubuntu0.16.04.3
1.10.0-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.1
1.10.3-0ubuntu0.16.04.2
1.10.3-0ubuntu0.16.04.3
1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5+esm1
1.10.3-0ubuntu0.16.04.5+esm2
1.10.3-0ubuntu0.16.04.5+esm3
1.10.3-0ubuntu0.16.04.5+esm4
1.10.3-0ubuntu0.16.04.5+esm5
1.10.3-0ubuntu0.16.04.5+esm6

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.10.3-0ubuntu0.16.04.5+esm7",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:Pro:18.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.14.0-0ubuntu1.11+esm2

Affected versions

1.*
1.12.1-0ubuntu2
1.13.6-2ubuntu1
1.13.6-2ubuntu2
1.13.10-1ubuntu1
1.13.12-0ubuntu1
1.14.0-0ubuntu1
1.14.0-0ubuntu1.1
1.14.0-0ubuntu1.2
1.14.0-0ubuntu1.3
1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.5
1.14.0-0ubuntu1.6
1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.9
1.14.0-0ubuntu1.10
1.14.0-0ubuntu1.11
1.14.0-0ubuntu1.11+esm1

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-auth-pam"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-cache-purge"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-dav-ext"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-echo"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-fancyindex"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-headers-more-filter"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-lua"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-ndk"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-subs-filter"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-uploadprogress"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-upstream-fair"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-nchan"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-rtmp"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.14.0-0ubuntu1.11+esm2",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"
Ubuntu:Pro:20.04:LTS
nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.18.0-0ubuntu1.7+esm1

Affected versions

1.*
1.16.1-0ubuntu2
1.16.1-0ubuntu3
1.17.5-0ubuntu1
1.17.6-0ubuntu1
1.17.7-0ubuntu1
1.17.8-0ubuntu1
1.17.8-0ubuntu2
1.17.8-0ubuntu3
1.17.9-0ubuntu1
1.17.9-0ubuntu2
1.17.9-0ubuntu3
1.17.10-0ubuntu1
1.18.0-0ubuntu1
1.18.0-0ubuntu1.2
1.18.0-0ubuntu1.3
1.18.0-0ubuntu1.4
1.18.0-0ubuntu1.5
1.18.0-0ubuntu1.6
1.18.0-0ubuntu1.7

Ecosystem specific 

{
    "priority_reason": "Possible remote code execution issue",
    "binaries": [
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-auth-pam"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-cache-purge"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-dav-ext"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-echo"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-fancyindex"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-geoip2"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-headers-more-filter"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-lua"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-ndk"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-subs-filter"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-uploadprogress"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-upstream-fair"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-nchan"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-rtmp"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.18.0-0ubuntu1.7+esm1",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42945.json"