CVE-2026-48760
Symfony: HtmlSanitizer URL Parser Deny Gates Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass Visual-Spoofing Defense
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlSanitizer::parse() rejected raw BiDi formatting characters but not percent-encoded forms and used an ASCII-only whitespace check, allowing sanitized URLs to retain visual-spoofing characters that downstream consumers could decode or display. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.
| CWE | CWE-451 CWE-1007 |
| Vendor | symfony |
| Product | symfony |
| Published | Jul 14, 2026 |
| Last Updated | Jul 15, 2026 |
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Affected Versions
symfony / symfony
>= 6.1.0, < 6.4.41 >= 7.0.0-BETA1, < 7.4.13 >= 8.0.0-BETA1, < 8.0.13
symfony / html-sanitizer
>= 6.1.0, < 6.4.41 >= 7.0.0-BETA1, < 7.4.13 >= 8.0.0-BETA1, < 8.0.13
References
github.com: https://github.com/symfony/symfony/security/advisories/GHSA-v3wm-qf9p-c549 github.com: https://github.com/symfony/symfony/commit/b21a626fd90f5c12d2db432c629eed3e780ba2f8 github.com: https://github.com/symfony/symfony/releases/tag/v6.4.41 github.com: https://github.com/symfony/symfony/releases/tag/v7.4.13 github.com: https://github.com/symfony/symfony/releases/tag/v8.0.13