{"id":"CVE-2026-46628","aliases":["CLSA-2026-1783991054","CLSA-2026-1784682913","CLSA-2026-1786534048","CLSA-2026-1794214791","DEBIAN-CVE-2026-46628","EUVD-2026-44566","GHSA-4j38-f5cw-54h7","UBUNTU-CVE-2026-46628"],"status":"published","title":"Twig: The `spaceless` filter implicitly marks its output as safe","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00295,"percentile":0.22336,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-116"],"published":"2026-05-21T21:21:35Z","modified":"2026-11-09T19:15:14Z","fixes":[{"ecosystem":"Packagist","package":"twig/twig","fixed_in":["3.26.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"php-twig","fixed_in":["3.5.1-1+deb12u3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"php-twig","fixed_in":["3.27.0-0+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"php-twig","fixed_in":["3.26.0-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0"}]}]},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"v2.16.1"},{"fixed":"v2.16.1-p1+tuxcare"}]}],"versions":["v2.16.1"],"bundled":11},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"v2.15.6"},{"fixed":"v2.15.6-p2+tuxcare"}]}],"versions":["v2.15.6","v2.15.6-p1+tuxcare"],"bundled":10},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"v1.44.8"},{"fixed":"v1.44.8-p1+tuxcare"}]}],"versions":["v1.44.8"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"v3.19.0"},{"fixed":"v3.19.0-p1+tuxcare"}]}],"versions":["v3.19.0"],"bundled":10},{"source":"osv","ecosystem":"Debian:12","package":"php-twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.1-1+deb12u3"}]}],"versions":["3.5.1-1","3.5.1-1+deb12u1","3.5.1-1+deb12u2"]},{"source":"osv","ecosystem":"Debian:13","package":"php-twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.27.0-0+deb13u1"}]}],"versions":["3.20.0-2","3.21.1-1","3.21.1-2","3.21.1-3","3.22.0-1","3.22.0-2","3.22.1-1","3.22.1-2","3.22.1-3","3.22.2-1","3.22.2-2","3.23.0-1","3.23.0-2","3.24.0-1","3.26.0-0+deb13u1","3.26.0-1"]},{"source":"osv","ecosystem":"Debian:14","package":"php-twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0-1"}]}],"versions":["3.20.0-2","3.21.1-1","3.21.1-2","3.21.1-3","3.22.0-1","3.22.0-2","3.22.1-1","3.22.1-2","3.22.1-3","3.22.2-1","3.22.2-2","3.23.0-1","3.23.0-2","3.24.0-1"]},{"source":"osv","ecosystem":"Packagist","package":"twig/twig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0"}]}],"versions":["1.3.0","1.4.0","1.5.0","1.5.1","1.6.0","1.6.1","1.6.2","1.6.3","1.6.4","1.6.5","v1.10.0","v1.10.1","v1.10.2","v1.10.3","v1.11.0","v1.11.1","v1.12.0","v1.12.0-RC1","v1.12.1","v1.12.2","v1.12.3","v1.13.0","v1.13.1","v1.13.2","v1.14.0","v1.14.1","v1.14.2","v1.15.0","v1.15.1","v1.16.0","v1.16.1","v1.16.2","v1.16.3","v1.17.0","v1.18.0","v1.18.1","v1.18.2","v1.19.0","v1.20.0","v1.21.0","v1.21.1","v1.21.2","v1.22.0","v1.22.1","v1.22.2","v1.22.3","v1.23.0","v1.23.1","v1.23.2","v1.23.3","v1.24.0","v1.24.1","v1.24.2","v1.25.0","v1.26.0","v1.26.1","v1.27.0","v1.28.0","v1.28.1","v1.28.2","v1.29.0","v1.30.0","v1.31.0","v1.32.0","v1.33.0","v1.33.1","v1.33.2","v1.34.0","v1.34.1","v1.34.2","v1.34.3","v1.34.4","v1.35.0","v1.35.1","v1.35.2","v1.35.3","v1.35.4","v1.36.0","v1.37.0","v1.37.1","v1.38.0","v1.38.1","v1.38.2","v1.38.3","v1.38.4","v1.39.0","v1.39.1","v1.40.0","v1.40.1","v1.41.0","v1.42.0","v1.42.1","v1.42.2","v1.42.3","v1.42.4","v1.42.5","v1.43.0","v1.43.1","v1.44.0","v1.44.1","v1.44.2","v1.44.3","v1.44.4","v1.44.5","v1.44.6","v1.44.7","v1.44.8","v1.7.0","v1.8.0","v1.8.1","v1.8.2","v1.8.3","v1.9.0","v1.9.1","v1.9.2","v2.0.0","v2.1.0","v2.10.0","v2.11.0","v2.11.1","v2.11.2","v2.11.3","v2.12.0","v2.12.1","v2.12.2","v2.12.3","v2.12.4","v2.12.5","v2.13.0","v2.13.1","v2.14.0","v2.14.1","v2.14.10","v2.14.11","v2.14.12","v2.14.13","v2.14.2","v2.14.3","v2.14.4","v2.14.5","v2.14.6","v2.14.7","v2.14.8","v2.14.9","v2.15.0","v2.15.1","v2.15.2","v2.15.3","v2.15.4","v2.15.5","v2.15.6","v2.16.0","v2.16.1","v2.2.0","v2.3.0","v2.3.1","v2.3.2","v2.4.0","v2.4.1","v2.4.2","v2.4.3","v2.4.4","v2.4.5","v2.4.6","v2.4.7","v2.4.8","v2.5.0","v2.6.0","v2.6.1","v2.6.2","v2.7.0","v2.7.1","v2.7.2","v2.7.3","v2.7.4","v2.8.0","v2.8.1","v2.9.0","v3.0.0","v3.0.0-BETA1","v3.0.1","v3.0.2","v3.0.3","v3.0.4","v3.0.5","v3.1.0","v3.1.1","v3.10.0","v3.10.1","v3.10.2","v3.10.3","v3.11.0","v3.11.1","v3.11.2","v3.11.3","v3.12.0","v3.13.0","v3.14.0","v3.14.1","v3.14.2","v3.15.0","v3.16.0","v3.17.0","v3.17.1","v3.18.0","v3.19.0","v3.2.1","v3.20.0","v3.21.0","v3.21.1","v3.22.0","v3.22.1","v3.22.2","v3.23.0","v3.24.0","v3.25.0","v3.3.0","v3.3.1","v3.3.10","v3.3.2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Advisory","advisory","web"]},{"url":"https://github.com/twigphp/Twig/commit/3190b9ae12614dfd58cc5d8f394bac4708b17913","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/twigphp/Twig/releases/tag/v3.26.0","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2026-46628.yaml","tags":["web"]},{"url":"https://symfony.com/cve-2026-46628","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4j38-f5cw-54h7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46628.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46628","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-46628","tags":["advisory"]},{"url":"https://github.com/twigphp/Twig","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-46628","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46628","tags":["report"]},{"url":"https://symfony.com/blog/cve-2026-46628-the-spaceless-filter-implicitly-marks-its-output-as-safe","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-46628","title":"Twig: The `spaceless` filter implicitly marks its output as safe","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T21:19:54.501Z","modified":"2026-07-15T12:49:21.254Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T13:47:06.353366Z"}],"euvd":[{"id":"EUVD-2026-44566","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T21:19:54Z","modified":"2026-07-15T12:49:21Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:19:53.226345Z"}],"ghsa":[{"id":"GHSA-4j38-f5cw-54h7","title":"Twig: The `spaceless` filter implicitly marks its output as safe","description":"### Description\n\nThe `spaceless` filter is registered with `is_safe =\u003e ['html']`, which means Twig's autoescaper does not escape its output in an HTML context. As a result, applying `spaceless` to attacker-controlled input that contains markup emits the markup unescaped even when the developer never wrote `|raw` and autoescape is enabled.\n\nExample:\n\n```twig\n{% set payload = '\u003cscript\u003ealert()\u003c/script\u003e' %}\n{{ payload }}          {# escaped #}\n{{ payload|spaceless }} {# not escaped #}\n```\n\nThe filter is deprecated but still functional. With the deprecation, some downstream projects (e.g. Drupal modules) have duplicated the filter and inherited the same `is_safe` flag.\n\n### Resolution\n\nThe `spaceless` filter no longer marks its output as safe. Documentation has been updated to warn that `spaceless` should not be applied to unsanitised user input.\n\n### Credits\n\nTwig would like to thank Pierre Rudloff for reporting the issue.","status":"published","published":"2026-05-21T21:21:35Z","modified":"2026-05-21T21:21:37Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U","level":"low"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:40:13.628377Z"}],"nvd":[{"id":"CVE-2026-46628","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T22:16:54.853Z","modified":"2026-10-24T22:10:00.21Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:12:29.879716Z"}],"osv":[{"id":"CVE-2026-46628","title":"Twig: The `spaceless` filter implicitly marks its output as safe","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T21:19:54.501Z","modified":"2026-10-28T02:30:33.133817742Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"DEBIAN-CVE-2026-46628","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T22:16:54.853Z","modified":"2026-10-25T09:47:29.890405748Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:56.444225Z"},{"id":"GHSA-4j38-f5cw-54h7","title":"Twig: The `spaceless` filter implicitly marks its output as safe","description":"### Description\n\nThe `spaceless` filter is registered with `is_safe =\u003e ['html']`, which means Twig's autoescaper does not escape its output in an HTML context. As a result, applying `spaceless` to attacker-controlled input that contains markup emits the markup unescaped even when the developer never wrote `|raw` and autoescape is enabled.\n\nExample:\n\n```twig\n{% set payload = '\u003cscript\u003ealert()\u003c/script\u003e' %}\n{{ payload }}          {# escaped #}\n{{ payload|spaceless }} {# not escaped #}\n```\n\nThe filter is deprecated but still functional. With the deprecation, some downstream projects (e.g. Drupal modules) have duplicated the filter and inherited the same `is_safe` flag.\n\n### Resolution\n\nThe `spaceless` filter no longer marks its output as safe. Documentation has been updated to warn that `spaceless` should not be applied to unsanitised user input.\n\n### Credits\n\nTwig would like to thank Pierre Rudloff for reporting the issue.","status":"published","published":"2026-05-21T21:21:35Z","modified":"2026-09-10T03:50:45.504087961Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U","level":"low"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T15:46:37.148947Z"},{"id":"UBUNTU-CVE-2026-46628","description":"Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.","status":"published","published":"2026-07-14T22:16:00Z","modified":"2026-10-17T12:58:25.058559876Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:30.797112Z"},{"id":"CLSA-2026-1783991054","title":"TuxCare security update for twig/twig (11 CVEs)","description":"TuxCare rebuilt twig/twig to address 11 CVEs. Fixed in v2.16.1-p1+tuxcare.","status":"published","published":"2026-08-04T14:52:43Z","modified":"2026-10-15T09:47:53.468304893Z","updated_at":"2026-11-02T15:43:46.151924Z"},{"id":"CLSA-2026-1784682913","title":"TuxCare security update for twig/twig (10 CVEs)","description":"TuxCare rebuilt twig/twig to address 10 CVEs. Fixed in v2.15.6-p2+tuxcare.","status":"published","published":"2026-08-04T14:52:46Z","modified":"2026-10-15T09:47:59.839636397Z","updated_at":"2026-11-02T15:43:46.482572Z"},{"id":"CLSA-2026-1786534048","title":"TuxCare security update for twig/twig (8 CVEs)","description":"TuxCare rebuilt twig/twig to address 8 CVEs. Fixed in v1.44.8-p1+tuxcare.","status":"published","published":"2026-08-12T11:27:28Z","modified":"2026-10-15T09:47:59.705236491Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"CLSA-2026-1794214791","title":"TuxCare security update for twig/twig (10 CVEs)","description":"TuxCare rebuilt twig/twig to address 10 CVEs. Fixed in v3.19.0-p1+tuxcare.","status":"published","published":"2026-11-09T09:59:52Z","modified":"2026-11-09T19:15:14.540306307Z","updated_at":"2026-11-09T19:38:09.278998Z"}]}}