CVEvulnerability
CVE-2026-59882
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.2 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-436
Description
guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost() does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost() to disagree with the URI authority used for security or routing decisions. This issue is fixed in version 2.12.3.
Affected configurations
• guzzlephp psr-7 (< 2.12.3)
Related
Weakness · CWE (1)
- CWE-436 Interpretation Conflict weakness
References
- https://github.com/guzzle/psr7/commit/ddd64f17d4cc1f7e5ffe6fd2c989ec7221712580 Patch
- https://github.com/guzzle/psr7/pull/811 Issue Tracking, Patch
- https://github.com/guzzle/psr7/releases/tag/2.12.3 Product, Release Notes
- https://github.com/guzzle/psr7/security/advisories/GHSA-c2w2-prh8-qm98 Mitigation, Vendor Advisory