CLEANSTART-2026-LT27425 Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions

Security vulnerability affects the nextcloud package. Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions...

CLSA-2026-1788334122 TuxCare security update for symfony/polyfill-intl-idn (1 CVE)

TuxCare rebuilt symfony/polyfill-intl-idn to address 1 CVE. Fixed in v1.30.0-p1+tuxcare...

PT-2026-90626

TuxCare rebuilt symfony/polyfill-intl-idn to address 1 CVE. Fixed in v1.30.0-p1+tuxcare...

CVE-2026-46644

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...

CVE-2026-46644

CVE-2026-46644 affects symfony/polyfill-intl-idn (1.17.1–1.38.1). The Idn::process() routine does not enforce UTS #46 rev 33 after Punycode decoding, allowing xn-- labels with empty or ASCII-only payloads to be treated as equal to their decoded form. This can enable blacklist bypass, inconsistent...

EUVD-2026-44537

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...

CVE-2026-46644 symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence

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...

CVE-2026-46644

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...

CVE-2026-46644

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...

CVE-2026-46644 symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence

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...

CVE-2026-46644: Improper Validation of Unsafe Equivalence in Input

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...

Linux Distros Unpatched Vulnerability : CVE-2026-46644

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-46644: symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence

More info at https://symfony.com/cve-2026-46644...

PT-2026-43392

Name of the Vulnerable Software and Affected Versions symfony/polyfill-intl-idn versions prior to 1.x Description The Idn::process function fails to enforce the validity criterion defined in UTS 46 revision 33 Section 4 step 4.1.2. Specifically, it does not verify that a label prefixed with xn--...