{"id":"UBUNTU-CVE-2026-49981","details":"Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.","modified":"2026-07-17T18:30:16.782926323Z","published":"2026-07-14T22:17:00Z","upstream":["CVE-2026-49981"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49981"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49981"},{"type":"REPORT","url":"https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4"},{"type":"REPORT","url":"https://github.com/twigphp/Twig/releases/tag/v3.27.0"},{"type":"REPORT","url":"https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq"}],"affected":[{"package":{"name":"twig","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/twig?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.0-1","1.23.1-1ubuntu1","1.23.1-1ubuntu4","1.23.1-1ubuntu4+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-twig","binary_version":"1.23.1-1ubuntu4+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49981.json"}},{"package":{"name":"twig","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/twig?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.24.0-2ubuntu1","2.4.4-2ubuntu1","2.4.6-1","2.4.6-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-twig","binary_version":"2.4.6-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49981.json"}},{"package":{"name":"php-twig","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.11.3-2","2.12.1-1","2.12.2-1","2.12.3-1","2.12.5-1","2.12.5-1ubuntu0.1~esm1","2.12.5-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"php-twig","binary_version":"2.12.5-1ubuntu0.1~esm2"},{"binary_name":"php-twig-cssinliner-extra","binary_version":"2.12.5-1ubuntu0.1~esm2"},{"binary_version":"2.12.5-1ubuntu0.1~esm2","binary_name":"php-twig-extra-bundle"},{"binary_version":"2.12.5-1ubuntu0.1~esm2","binary_name":"php-twig-html-extra"},{"binary_name":"php-twig-inky-extra","binary_version":"2.12.5-1ubuntu0.1~esm2"},{"binary_name":"php-twig-intl-extra","binary_version":"2.12.5-1ubuntu0.1~esm2"},{"binary_version":"2.12.5-1ubuntu0.1~esm2","binary_name":"php-twig-markdown-extra"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49981.json"}},{"package":{"name":"php-twig","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.2-1ubuntu3","3.3.4-1","3.3.6-1","3.3.7-1","3.3.8-2ubuntu4","3.3.8-2ubuntu4+esm1","3.3.8-2ubuntu4+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"php-twig","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_name":"php-twig-cache-extra","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_name":"php-twig-cssinliner-extra","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_name":"php-twig-extra-bundle","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_name":"php-twig-html-extra","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_version":"3.3.8-2ubuntu4+esm2","binary_name":"php-twig-inky-extra"},{"binary_name":"php-twig-intl-extra","binary_version":"3.3.8-2ubuntu4+esm2"},{"binary_version":"3.3.8-2ubuntu4+esm2","binary_name":"php-twig-markdown-extra"},{"binary_name":"php-twig-string-extra","binary_version":"3.3.8-2ubuntu4+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49981.json"}},{"package":{"name":"php-twig","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.0-1","3.7.1-1","3.8.0-2","3.8.0-2ubuntu0.1~esm1","3.8.0-2ubuntu1","3.8.0-2ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-twig","binary_version":"3.8.0-2ubuntu1+esm1"},{"binary_version":"3.8.0-2ubuntu1+esm1","binary_name":"php-twig-cache-extra"},{"binary_version":"3.8.0-2ubuntu1+esm1","binary_name":"php-twig-cssinliner-extra"},{"binary_name":"php-twig-extra-bundle","binary_version":"3.8.0-2ubuntu1+esm1"},{"binary_name":"php-twig-html-extra","binary_version":"3.8.0-2ubuntu1+esm1"},{"binary_version":"3.8.0-2ubuntu1+esm1","binary_name":"php-twig-inky-extra"},{"binary_version":"3.8.0-2ubuntu1+esm1","binary_name":"php-twig-intl-extra"},{"binary_version":"3.8.0-2ubuntu1+esm1","binary_name":"php-twig-markdown-extra"},{"binary_name":"php-twig-string-extra","binary_version":"3.8.0-2ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49981.j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