Composer symfony/routing has 5 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.
| CVE | Title | Severity | CVSS | Affected | Fixed in |
|---|---|---|---|---|---|
| CVE-2012-6431 | Symfony Allows URI Restrictions Bypass Via Double-Encoded String | medium | 0.0 | >=2.0.0 and <2.0.19 | 2.0.19 |
| CVE-2026-45065 | Symfony has a UrlGenerator Route-Requirement Bypass via Unanchored Regex Alternation → Off-Site //host URL Injection | medium | 0.0 | <5.4.52 or >=6.0.0 and <6.4.40 or >=7.0.0 and <7.4.12 or >=8.0.0 and <8.0.12 or >=2.0.0 and <3.0.0 or >=3.0.0 and <4.0.0 or >=4.0.0 and <5.0.0 or >=5.0.0 and <5.1.0 or >=5.1.0 and <5.2.0 or >=5.2.0 and <5.3.0 or >=5.3.0 and <5.4.0 or >=5.4.0 and <5.4.52 or >=6.0.0 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.40 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.12 | 5.4.52, 6.4.40, 7.4.12, 8.0.12 |
| CVE-2026-48784 | Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained `../` or `./` → Generated URL Collapses Off-Route Under RFC 3986 Normal | medium | 0.0 | <5.4.53 or >=6.0.0 and <6.4.41 or >=7.0.0 and <7.4.13 or >=8.0.0 and <8.0.13 or >=2.0.0 and <3.0.0 or >=3.0.0 and <4.0.0 or >=4.0.0 and <5.0.0 or >=5.0.0 and <5.1.0 or >=5.1.0 and <5.2.0 or >=5.2.0 and <5.3.0 or >=5.3.0 and <5.4.0 or >=5.4.0 and <5.4.53 or >=6.0.0 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.41 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.13 | 5.4.53, 6.4.41, 7.4.13, 8.0.13 |
| GHSA-rjpm-qmq7-q85w | Symfony XXE security vulnerability | high | 7.5 | >=2.0.0 and <2.0.17 | 2.0.17 |
| 2012-08-28 | Security fixes related to the way XML is handled | unknown | 0.0 | >=2.0.0 and <2.0.17 | 2.0.17 |
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