{"id":"CVE-2026-45064","aliases":["DEBIAN-CVE-2026-45064","EUVD-2026-44348","GHSA-h5vq-qfcg-4m6p","UBUNTU-CVE-2026-45064"],"status":"published","title":"Symfony: HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00338,"percentile":0.27537,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1007","CWE-451"],"published":"2026-05-27T20:04:22Z","modified":"2026-10-28T02:30:38Z","fixes":[{"ecosystem":"Packagist","package":"symfony/html-sanitizer","fixed_in":["6.4.40","7.4.12","8.0.12"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"symfony/symfony","fixed_in":["6.4.40","7.4.12","8.0.12"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:13","package":"symfony","fixed_in":["6.4.41+dfsg-0+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"symfony","fixed_in":["7.4.12+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.4.40"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.4.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.0.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.4.40"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.4.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.0.12"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.4.41+dfsg-0+deb13u1"}]}],"versions":["6.4.21+dfsg-2","6.4.21+dfsg-2+deb13u1","6.4.24+dfsg-1","6.4.25+dfsg-1","6.4.40+dfsg-0+deb13u1"]},{"source":"osv","ecosystem":"Debian:14","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.12+dfsg-1"}]}],"versions":["6.4.21+dfsg-2","6.4.24+dfsg-1","6.4.25+dfsg-1","7.0.4+dfsg-1","7.0.5+dfsg-1","7.0.6+dfsg-1","7.0.7+dfsg-1","7.1.0~beta1+dfsg-1","7.1.0~rc1+dfsg-1","7.1.2+dfsg-1","7.1.3+dfsg-1","7.1.4+dfsg-1","7.1.5+dfsg-1","7.2.0~beta1+dfsg-1","7.2.0~beta2+dfsg-1","7.2.0~rc1+dfsg-1","7.2.1+dfsg-1","7.2.2+dfsg-1","7.2.3+dfsg-1","7.2.4+dfsg-1","7.2.5+dfsg-1","7.2.6-1","7.3.0+dfsg-1","7.3.0~beta1+dfsg-1","7.3.0~beta2+dfsg-1","7.3.0~rc1+dfsg-1","7.3.1+dfsg-1","7.3.2+dfsg-1","7.3.3+dfsg-1","7.3.4+dfsg-1","7.3.5-1","7.4.0+dfsg-1","7.4.0+dfsg-2","7.4.0~beta1-1","7.4.0~beta1-2","7.4.0~beta2+dfsg-1","7.4.0~beta2+dfsg-2","7.4.0~beta2+dfsg-3","7.4.0~rc1+dfsg-1","7.4.0~rc2+dfsg-1","7.4.0~rc3+dfsg-1","7.4.10+dfsg-1","7.4.2+dfsg-1","7.4.2+dfsg-2","7.4.3+dfsg-1","7.4.4+dfsg-1","7.4.5+dfsg-1","7.4.6+dfsg-1","7.4.6+dfsg-2","7.4.7+dfsg-1","7.4.8+dfsg-1","7.4.9+dfsg-1"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.4.40"}]}],"versions":["v6.1.0","v6.1.11","v6.1.9","v6.2.0","v6.2.0-BETA1","v6.2.0-RC1","v6.2.2","v6.2.5","v6.2.7","v6.3.0","v6.3.0-BETA1","v6.3.0-RC1","v6.3.12","v6.3.4","v6.3.7","v6.4.0","v6.4.0-BETA1","v6.4.0-BETA2","v6.4.0-RC1","v6.4.12","v6.4.13","v6.4.17","v6.4.18","v6.4.21","v6.4.24","v6.4.25","v6.4.28","v6.4.3","v6.4.35","v6.4.4","v6.4.7","v6.4.8"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.4.12"}]}],"versions":["v7.0.0","v7.0.3","v7.0.4","v7.0.7","v7.0.8","v7.1.0","v7.1.0-BETA1","v7.1.0-RC1","v7.1.1","v7.1.10","v7.1.11","v7.1.5","v7.1.6","v7.2.0","v7.2.0-BETA1","v7.2.0-RC1","v7.2.2","v7.2.3","v7.2.6","v7.2.9","v7.3.0","v7.3.0-BETA1","v7.3.0-RC1","v7.3.2","v7.3.3","v7.3.6","v7.4.0","v7.4.0-BETA1","v7.4.0-BETA2","v7.4.0-RC1","v7.4.7","v7.4.8"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/html-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.0.12"}]}],"versions":["v8.0.0","v8.0.7","v8.0.8"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.4.40"}]}],"versions":["v6.1.0","v6.1.1","v6.1.10","v6.1.11","v6.1.12","v6.1.2","v6.1.3","v6.1.4","v6.1.5","v6.1.6","v6.1.7","v6.1.8","v6.1.9","v6.2.0","v6.2.0-BETA1","v6.2.0-BETA2","v6.2.0-BETA3","v6.2.0-RC1","v6.2.0-RC2","v6.2.1","v6.2.10","v6.2.11","v6.2.12","v6.2.13","v6.2.14","v6.2.2","v6.2.3","v6.2.4","v6.2.5","v6.2.6","v6.2.7","v6.2.8","v6.2.9","v6.3.0","v6.3.0-BETA1","v6.3.0-BETA2","v6.3.0-BETA3","v6.3.0-RC1","v6.3.0-RC2","v6.3.1","v6.3.10","v6.3.11","v6.3.12","v6.3.2","v6.3.3","v6.3.4","v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Advisory","advisory","web"]},{"url":"https://github.com/symfony/symfony/commit/743a435e948b897ef2b5564ac438d4beb95d2526","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.40","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.12","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/symfony/symfony/releases/tag/v8.0.12","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/html-sanitizer/CVE-2026-45064.yaml","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45064.yaml","tags":["web"]},{"url":"https://symfony.com/cve-2026-45064","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h5vq-qfcg-4m6p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45064.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45064","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-45064","tags":["advisory"]},{"url":"https://github.com/symfony/symfony","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-45064","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45064","tags":["report"]},{"url":"https://symfony.com/blog/cve-2026-45064-htmlsanitizer-url-attributes-pass-through-bidi-override-characters-visual-href-spoofing","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-45064","title":"Symfony: HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T18:35:53.53Z","modified":"2026-07-21T19:09:27.83Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-451","CWE-1007"],"updated_at":"2026-11-02T13:46:43.922571Z"}],"euvd":[{"id":"EUVD-2026-44348","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T18:35:53Z","modified":"2026-07-21T19:09:27Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-02T18:19:46.900828Z"}],"ghsa":[{"id":"GHSA-h5vq-qfcg-4m6p","title":"Symfony's HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing","description":"### Description\n\n`Symfony\\Component\\HtmlSanitizer\\TextSanitizer\\UrlSanitizer::parse()` (used by `UrlSanitizer::sanitize()` and therefore by every `HtmlSanitizer` config that allows links or media) accepts URLs that contain Unicode explicit-direction BiDi formatting characters: U+202A–U+202E (LRE / RLE / PDF / LRO / RLO) and U+2066–U+2069 (LRI / RLI / FSI / PDI). These characters are passed through unchanged into the `href` / `src` attributes produced by `HtmlSanitizer`. When the resulting HTML is rendered in a browser, the override characters reverse or alter the visual ordering of the URL text, so the displayed link can differ arbitrarily from the actual destination: a classic visual-spoofing / phishing primitive against viewers of sanitized content.\n\n### Resolution\n\n`UrlSanitizer::parse()` now rejects URLs containing the explicit-direction BiDi formatting code points (U+202A–U+202E, U+2066–U+2069) before invoking the underlying URL parser. As an unrelated companion fix in the same patch, spaces inside path/query/fragment are now percent-encoded rather than rejected outright, while spaces in the scheme/authority remain rejected by the post-encoding whitespace check.\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/743a435e948b897ef2b5564ac438d4beb95d2526) for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Himanshu Anand for reporting the issue and Nicolas Grekas for providing the fix.","status":"published","published":"2026-05-27T20:04:22Z","modified":"2026-05-27T20:04:23Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-451","CWE-1007"],"updated_at":"2026-11-02T14:40:14.666177Z"}],"nvd":[{"id":"CVE-2026-45064","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T19:17:05.763Z","modified":"2026-07-21T20:17:00.933Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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":"low","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-451","CWE-1007"],"updated_at":"2026-11-02T14:12:29.879716Z"}],"osv":[{"id":"CVE-2026-45064","title":"Symfony: HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T18:35:53.53Z","modified":"2026-10-28T02:30:38.740013929Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-1007","CWE-451"],"updated_at":"2026-11-02T15:45:05.172514Z"},{"id":"DEBIAN-CVE-2026-45064","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T19:17:05.763Z","modified":"2026-10-01T03:03:14.566462107Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:55.669088Z"},{"id":"GHSA-h5vq-qfcg-4m6p","title":"Symfony's HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing","description":"### Description\n\n`Symfony\\Component\\HtmlSanitizer\\TextSanitizer\\UrlSanitizer::parse()` (used by `UrlSanitizer::sanitize()` and therefore by every `HtmlSanitizer` config that allows links or media) accepts URLs that contain Unicode explicit-direction BiDi formatting characters: U+202A–U+202E (LRE / RLE / PDF / LRO / RLO) and U+2066–U+2069 (LRI / RLI / FSI / PDI). These characters are passed through unchanged into the `href` / `src` attributes produced by `HtmlSanitizer`. When the resulting HTML is rendered in a browser, the override characters reverse or alter the visual ordering of the URL text, so the displayed link can differ arbitrarily from the actual destination: a classic visual-spoofing / phishing primitive against viewers of sanitized content.\n\n### Resolution\n\n`UrlSanitizer::parse()` now rejects URLs containing the explicit-direction BiDi formatting code points (U+202A–U+202E, U+2066–U+2069) before invoking the underlying URL parser. As an unrelated companion fix in the same patch, spaces inside path/query/fragment are now percent-encoded rather than rejected outright, while spaces in the scheme/authority remain rejected by the post-encoding whitespace check.\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/743a435e948b897ef2b5564ac438d4beb95d2526) for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Himanshu Anand for reporting the issue and Nicolas Grekas for providing the fix.","status":"published","published":"2026-05-27T20:04:22Z","modified":"2026-09-10T03:51:05.868187206Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1007","CWE-451"],"updated_at":"2026-11-02T15:46:48.546324Z"},{"id":"UBUNTU-CVE-2026-45064","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.","status":"published","published":"2026-07-14T19:17:00Z","modified":"2026-10-17T13:00:11.719125031Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:26.396868Z"}]}}