Security Advisory

CVE-2026-59882

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-08 15:50:03

Last updated 2026-07-08 17:00:22

Assigner GitHub_M

CVSS score 4.2

State PUBLISHED

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.

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