UBUNTU-CVE-2026-46644

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Source
https://ubuntu.com/security/CVE-2026-46644
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-46644
Upstream
Published
2026-07-14T21:16:00Z
Modified
2026-07-15T19:47:22Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions. From 1.17.1 until 1.38.1, symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload is empty or decodes to ASCII-only code points because Idn::process() does not enforce the UTS #46 revision 33 requirement that decoded ACE labels contain at least one non-ASCII code point. Originally unequal domain names can be regarded as equal, which can lead to blacklist bypassing, inconsistent URL parsing, and server-side request forgery in applications using the polyfill to canonicalise or compare hostnames. This issue is fixed in version 1.38.1.

References

Affected packages

Ubuntu:18.04:LTS / php-symfony-polyfill

Package

Name
php-symfony-polyfill
Purl
pkg:deb/ubuntu/php-symfony-polyfill?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.0-1ubuntu1
1.6.0-1
1.6.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "php-symfony-polyfill",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-apcu",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-iconv",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-grapheme",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-icu",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-normalizer",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-mbstring",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php54",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php55",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php56",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php70",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php71",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-php72",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-util",
            "binary_version": "1.6.0-2"
        },
        {
            "binary_name": "php-symfony-polyfill-xml",
            "binary_version": "1.6.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json"

Ubuntu:22.04:LTS / php-symfony-polyfill

Package

Name
php-symfony-polyfill
Purl
pkg:deb/ubuntu/php-symfony-polyfill?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.22.1-1
1.23.1-1
1.24.0-1ubuntu1
1.24.0-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "php-symfony-polyfill",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-apcu",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-ctype",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-iconv",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-grapheme",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-icu",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-idn",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-messageformatter",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-normalizer",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-mbstring",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-php72",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-php73",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-php74",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-php80",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-php81",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-util",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-uuid",
            "binary_version": "1.24.0-1ubuntu2"
        },
        {
            "binary_name": "php-symfony-polyfill-xml",
            "binary_version": "1.24.0-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json"

Ubuntu:24.04:LTS / php-symfony-polyfill

Package

Name
php-symfony-polyfill
Purl
pkg:deb/ubuntu/php-symfony-polyfill?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.27.0-2
1.28.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "php-symfony-polyfill",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-apcu",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-ctype",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-iconv",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-grapheme",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-icu",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-idn",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-messageformatter",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-normalizer",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-mbstring",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php72",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php73",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php74",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php80",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php81",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php82",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-php83",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-util",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-uuid",
            "binary_version": "1.28.0-1"
        },
        {
            "binary_name": "php-symfony-polyfill-xml",
            "binary_version": "1.28.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json"

Ubuntu:25.10 / php-symfony-polyfill

Package

Name
php-symfony-polyfill
Purl
pkg:deb/ubuntu/php-symfony-polyfill?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.31.0-4ubuntu1
1.31.0-5ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "php-symfony-polyfill",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-apcu",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-ctype",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-iconv",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-grapheme",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-icu",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-idn",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-messageformatter",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-normalizer",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-mbstring",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php72",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php73",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php74",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php80",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php81",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php82",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php83",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php84",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-util",
            "binary_version": "1.31.0-5ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-uuid",
            "binary_version": "1.31.0-5ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json"

Ubuntu:26.04:LTS / php-symfony-polyfill

Package

Name
php-symfony-polyfill
Purl
pkg:deb/ubuntu/php-symfony-polyfill?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.31.0-5ubuntu1
1.33.0-4ubuntu1
1.33.0-5ubuntu1
1.33.0-6ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "php-symfony-polyfill",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-apcu",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-ctype",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-iconv",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-grapheme",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-icu",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-idn",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-messageformatter",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-intl-normalizer",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-mbstring",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php73",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php74",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php80",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php81",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php82",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php83",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php84",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-php85",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-util",
            "binary_version": "1.33.0-6ubuntu1"
        },
        {
            "binary_name": "php-symfony-polyfill-uuid",
            "binary_version": "1.33.0-6ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46644.json"