6.5

CVE-2026-59882

guzzlehttp/psr7: Host Confusion via Weak URI Host Validation

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Guzzlephp ≫ Psr-7 Version < 2.12.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.084
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
security-advisories@github.com 4.2 1.6 2.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE-436 Interpretation Conflict

Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

https://github.com/guzzle/psr7/security/advisories/GHSA-c2w2-prh8-qm98
Vendor Advisory
Mitigation
https://github.com/guzzle/psr7/pull/811
Patch
Issue Tracking
https://github.com/guzzle/psr7/commit/ddd64f17d4cc1f7e5ffe6fd2c989ec7221712580
Patch
https://github.com/guzzle/psr7/releases/tag/2.12.3
Product
Release Notes