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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2023-29197

Improper header name validation in guzzlehttp/psr7

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

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 used to terminate the header list, many servers in the wild will also accept \n\n. This is a follow-up to CVE-2022-24775 where the fix was incomplete. The issue has been patched in versions 1.9.1 and 2.4.5. There are no known workarounds for this vulnerability. Users are advised to upgrade.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

guzzle psr7

  • < 1.9.1affected
  • >= 2.0.0, < 2.4.5affected

References