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.
References
| Link | Resource |
|---|---|
| https://github.com/symfony/symfony/commit/e62ea217f8b4ca8ae922ad0f949e0c4dc1f9b613 | Patch |
| https://github.com/symfony/symfony/releases/tag/v5.4.52 | Product Release Notes |
| https://github.com/symfony/symfony/releases/tag/v6.4.40 | Product Release Notes |
| https://github.com/symfony/symfony/releases/tag/v7.4.12 | Product Release Notes |
| https://github.com/symfony/symfony/releases/tag/v8.0.12 | Product Release Notes |
| https://github.com/symfony/symfony/security/advisories/GHSA-vqc8-7275-q272 | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
15 Jul 2026, 14:50
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| References | () https://github.com/symfony/symfony/commit/e62ea217f8b4ca8ae922ad0f949e0c4dc1f9b613 - Patch | |
| References | () https://github.com/symfony/symfony/releases/tag/v5.4.52 - Product, Release Notes | |
| References | () https://github.com/symfony/symfony/releases/tag/v6.4.40 - Product, Release Notes | |
| References | () https://github.com/symfony/symfony/releases/tag/v7.4.12 - Product, Release Notes | |
| References | () https://github.com/symfony/symfony/releases/tag/v8.0.12 - Product, Release Notes | |
| References | () https://github.com/symfony/symfony/security/advisories/GHSA-vqc8-7275-q272 - Patch, Vendor Advisory | |
| First Time |
Sensiolabs symfony
Sensiolabs |
|
| CPE | cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* |
14 Jul 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-14 19:17
Updated : 2026-07-16 15:16
NVD link : CVE-2026-45070
Mitre link : CVE-2026-45070
CVE.ORG link : CVE-2026-45070
JSON object : View
Products Affected
sensiolabs
- symfony
CWE
CWE-93
Improper Neutralization of CRLF Sequences ('CRLF Injection')
