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Medium USN-6671-1 1 CVE

php-nyholm-psr7 vulnerability

Published Feb 29, 2024 · Updated Apr 27, 2026

Ecosystem: Ubuntu

Summary

It was discovered that php-nyholm-psr7 incorrectly parsed HTTP
headers. A remote attacker could possibly use this issue to perform
an HTTP header injection attack.

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 22.04 LTS Pro:22.04:LTS php-nyholm-psr7 1.5.0-1ubuntu0.1~esm1

Vulnerabilities 1

  • Medium 5.3
    CVE-2023-29197

    Improper header name validation in guzzlehttp/psr7

    guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is u…

    guzzle psr7 php-guzzlehttp-psr7 guzzlehttp/psr7 Debian Ubuntu Packagist

References

  • report
    https://ubuntu.com/security/CVE-2023-29197