Guzzlephp: >> Psr-7 >> 2.12.2 Security Vulnerabilities
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.
CVSS Score
4.2
EPSS Score
0.002
Published
2026-07-08