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CVE CVE-2026-59882

CVE-2026-59882

PHP

Severity: MEDIUM
CVSS: 4.2CVSS
Published: 2026-07-08
Last modified: 2026-07-08
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE: 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.

References

https://github.com/guzzle/psr7/commit/ddd64f17d4cc1f7e5ffe6fd2c989ec7221712580
https://github.com/guzzle/psr7/pull/811
https://github.com/guzzle/psr7/releases/tag/2.12.3
https://github.com/guzzle/psr7/security/advisories/GHSA-c2w2-prh8-qm98

Summary

Description

References