CVE-2026-45070
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| symfony | symfony | < 5.4.52 | affected |
| symfony | symfony | >= 6.0.0-BETA1, < 6.4.40 | affected |
| symfony | symfony | >= 7.0.0-BETA1, < 7.4.12 | affected |
| symfony | symfony | >= 8.0.0-BETA1, < 8.0.12 | affected |
| symfony | mime | < 5.4.52 | affected |
| symfony | mime | >= 6.0.0-BETA1, < 6.4.40 | affected |
| symfony | mime | >= 7.0.0-BETA1, < 7.4.12 | affected |
| symfony | mime | >= 8.0.0-BETA1, < 8.0.12 | affected |
Weaknesses
- CWE-93: CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
References
- https://github.com/symfony/symfony/security/advisories/GHSA-vqc8-7275-q272
- https://github.com/symfony/symfony/commit/e62ea217f8b4ca8ae922ad0f949e0c4dc1f9b613
- https://github.com/symfony/symfony/releases/tag/v5.4.52
- https://github.com/symfony/symfony/releases/tag/v6.4.40
- https://github.com/symfony/symfony/releases/tag/v7.4.12
- https://github.com/symfony/symfony/releases/tag/v8.0.12
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