CVE-2026-45070
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.1
CVSS
6.5
Medio
EPSS
0.3%
p21
KEV
—
Exploit Today
6
0-100
Publicado: 14 jul 2026 · Última mod.: 16 jul 2026 · CWE-93
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\Component\Mime\Header\ParameterizedHeader validates and encodes parameter values but emits parameter names verbatim, allowing a caller that derives a parameter name from untrusted input to include CRLF or other non-token bytes and inject additional headers into rendered structured mail headers such as Content-Type or Content-Disposition. This issue is reported as fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
- github.comhttps://github.com/symfony/symfony/commit/e62ea217f8b4ca8ae922ad0f949e0c4dc1f9b613
- github.comhttps://github.com/symfony/symfony/releases/tag/v5.4.52
- github.comhttps://github.com/symfony/symfony/releases/tag/v6.4.40
- github.comhttps://github.com/symfony/symfony/releases/tag/v7.4.12
- github.comhttps://github.com/symfony/symfony/releases/tag/v8.0.12
- github.comhttps://github.com/symfony/symfony/security/advisories/GHSA-vqc8-7275-q272