USN-8210-1

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Source
https://ubuntu.com/security/notices/USN-8210-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8210-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-8210-1
Upstream
Related
Published
2026-04-27T12:28:20Z
Modified
2026-04-28T16:44:27.865946382Z
Summary
nginx vulnerabilities
Details

It was discovered that the nginx ngxmailauthhttpmodule module incorrectly handled certain requests. An attacker could possibly use this issue to cause nginx to crash, resulting in a denial of service. (CVE-2026-27651)

It was discovered that the nginx ngxhttpdav_module module incorrectly handled certain destination URIs. An attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly modify source or destination names outside of the document root. (CVE-2026-27654)

It was discovered that the nginx ngxhttpmp4_module module incorrectly handled certain MP4 files. An attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-27784, CVE-2026-32647)

It was discovered that the nginx ngxmailsmtp_module module incorrectly handled certain CRLF sequences. An attacker could possibly use this issue to inject arbitrary SMTP headers. (CVE-2026-28753)

It was discovered that the nginx ngxstreamssl_module module incorrectly handled revoked certificates. This could result in successful TLS handshakes even after an OCSP check identifies a certificate as revoked, contrary to expectations. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-28755)

References

Affected packages

Ubuntu:22.04:LTS / nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx@1.18.0-6ubuntu14.10?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.18.0-6ubuntu14.10

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-auth-pam"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-cache-purge"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-dav-ext"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-echo"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-fancyindex"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-geoip2"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-headers-more-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-ndk"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-subs-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-uploadprogress"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-upstream-fair"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-nchan"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-rtmp"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "libnginx-mod-stream-geoip2"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.18.0-6ubuntu14.10",
            "binary_name": "nginx-light"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-27651",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-27654",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-27784",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-28753",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-32647",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8210-1.json"

Ubuntu:24.04:LTS / nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx@1.24.0-2ubuntu7.7?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.24.0-2ubuntu7.7

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.24.0-2ubuntu7.7",
            "binary_name": "nginx-light"
        }
    ]
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-27651",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-27654",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-27784",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-28753",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-28755",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-32647",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8210-1.json"

Ubuntu:25.10 / nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx@1.28.0-6ubuntu1.2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.28.0-6ubuntu1.2

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-http-geoip"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-http-image-filter"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-http-perl"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-http-xslt-filter"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-mail"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-stream"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "libnginx-mod-stream-geoip"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.28.0-6ubuntu1.2",
            "binary_name": "nginx-light"
        }
    ]
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "id": "CVE-2026-27651",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-27654",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-27784",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-28753",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-28755",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
                },
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-32647",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8210-1.json"