UBUNTU-CVE-2026-7258

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Source
https://ubuntu.com/security/CVE-2026-7258
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7258.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-7258
Upstream
Published
2026-05-10T05:16:00Z
Modified
2026-05-28T15:45:22.613287383Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Amber CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - negligible
Summary
[none]
Details

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.

References

Affected packages

Ubuntu:24.04:LTS / php8.3

Package

Name
php8.3
Purl
pkg:deb/ubuntu/php8.3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.3.6-0ubuntu0.24.04.9

Affected versions

8.*
8.3.0-1
8.3.0-1ubuntu1
8.3.4-1
8.3.4-1build1
8.3.6-0maysync1
8.3.6-0ubuntu0.24.04.1
8.3.6-0ubuntu0.24.04.2
8.3.6-0ubuntu0.24.04.3
8.3.6-0ubuntu0.24.04.4
8.3.6-0ubuntu0.24.04.5
8.3.6-0ubuntu0.24.04.6
8.3.6-0ubuntu0.24.04.7
8.3.6-0ubuntu0.24.04.8

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libapache2-mod-php8.3",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "libphp8.3-embed",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-bcmath",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-bz2",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-cgi"
        },
        {
            "binary_name": "php8.3-cli",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-common",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-curl",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-dba",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-enchant",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-fpm",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-gd",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-gmp"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-imap"
        },
        {
            "binary_name": "php8.3-interbase",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-intl",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-ldap"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-mbstring"
        },
        {
            "binary_name": "php8.3-mysql",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-odbc",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-opcache",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-pgsql",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-phpdbg",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-pspell"
        },
        {
            "binary_name": "php8.3-readline",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-snmp",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-soap"
        },
        {
            "binary_name": "php8.3-sqlite3",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-sybase",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-tidy",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-xml",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_name": "php8.3-xsl",
            "binary_version": "8.3.6-0ubuntu0.24.04.9"
        },
        {
            "binary_version": "8.3.6-0ubuntu0.24.04.9",
            "binary_name": "php8.3-zip"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7258.json"

Ubuntu:25.10 / php8.4

Package

Name
php8.4
Purl
pkg:deb/ubuntu/php8.4?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.4.11-1ubuntu1.2

Affected versions

8.*
8.4.5-1ubuntu1
8.4.8-1ubuntu1
8.4.11-1ubuntu1
8.4.11-1ubuntu1.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libapache2-mod-php8.4",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "libphp8.4-embed",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-bcmath"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-bz2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-cgi"
        },
        {
            "binary_name": "php8.4-cli",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-common"
        },
        {
            "binary_name": "php8.4-curl",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-dba",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-enchant"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-fpm"
        },
        {
            "binary_name": "php8.4-gd",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-gmp"
        },
        {
            "binary_name": "php8.4-interbase",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-intl",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-ldap"
        },
        {
            "binary_name": "php8.4-mbstring",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-mysql",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-odbc",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-opcache",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-pgsql",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-phpdbg",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-readline",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-snmp",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_version": "8.4.11-1ubuntu1.2",
            "binary_name": "php8.4-soap"
        },
        {
            "binary_name": "php8.4-sqlite3",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-sybase",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-tidy",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-xml",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-xsl",
            "binary_version": "8.4.11-1ubuntu1.2"
        },
        {
            "binary_name": "php8.4-zip",
            "binary_version": "8.4.11-1ubuntu1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7258.json"

Ubuntu:26.04:LTS / php8.5

Package

Name
php8.5
Purl
pkg:deb/ubuntu/php8.5?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.5.4-0ubuntu1.1

Affected versions

8.*
8.5.2-0ubuntu1
8.5.4-0ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libapache2-mod-php8.5",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "libphp8.5-embed"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5"
        },
        {
            "binary_name": "php8.5-bcmath",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-bz2"
        },
        {
            "binary_name": "php8.5-cgi",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-cli",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-common"
        },
        {
            "binary_name": "php8.5-curl",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-dba",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-enchant",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-fpm",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-gd"
        },
        {
            "binary_name": "php8.5-gmp",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-interbase",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-intl",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-ldap"
        },
        {
            "binary_name": "php8.5-litespeed",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-mbstring"
        },
        {
            "binary_name": "php8.5-mysql",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-odbc",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-pgsql"
        },
        {
            "binary_name": "php8.5-phpdbg",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-readline",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-snmp"
        },
        {
            "binary_name": "php8.5-soap",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-sqlite3",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-sybase",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-tidy"
        },
        {
            "binary_version": "8.5.4-0ubuntu1.1",
            "binary_name": "php8.5-xml"
        },
        {
            "binary_name": "php8.5-xsl",
            "binary_version": "8.5.4-0ubuntu1.1"
        },
        {
            "binary_name": "php8.5-zip",
            "binary_version": "8.5.4-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7258.json"