# symfony/routing (Packagist) vulnerabilities

4 known vulnerabilities (2 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://packagist.org/packages/symfony/routing

## Advisories (4)

### [CVE-2026-118516](https://cve.now/CVE-2026-118516): Symfony: Host Placeholders Can Match the Start of the Path in Compiled URL Matchers, Bypassing Path-Based Access Control

- Severity: Medium 6.3
- Published: Nov 4, 2026
- Affected: fixed in 5.4.56; from 6.0.0, fixed in 6.4.50; from 7.0.0, fixed in 7.4.23; from 8.0.0, fixed in 8.1.11.

### [CVE-2026-48784](https://cve.now/CVE-2026-48784): Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained \`../\` or \`./\` → Generated URL Collapses Off-Route Under RFC 3986…

- Severity: Medium 5.1
- Published: Jul 14, 2026
- Affected: fixed in 5.4.53; from 6.0.0, fixed in 6.4.41; from 7.0.0, fixed in 7.4.13; from 8.0.0, fixed in 8.0.13.

### [CVE-2026-45065](https://cve.now/CVE-2026-45065): Symfony: UrlGenerator Route-Requirement Bypass via Unanchored Regex Alternation → Off-Site //host URL Injection

- Severity: Low 2.3
- Published: Jul 14, 2026
- Affected: fixed in 5.4.52; from 6.0.0, fixed in 6.4.40; from 7.0.0, fixed in 7.4.12; from 8.0.0, fixed in 8.0.12.

### [CVE-2012-6431](https://cve.now/CVE-2012-6431): Symfony 2.0.x before 2.0.20 does not process URL encoded data consistently within the Routing and Security components, which allows remote…

- Severity: Unrated
- Published: Dec 27, 2012
- Affected: from 2.0.0, fixed in 2.0.19.

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