Description
guzzlehttp/psr7 is a PSR-7 HTTP message library. Versions prior to 1.8.4 and 2.1.1 are vulnerable to improper header parsing. An attacker could sneak in a new line character and pass untrusted values. The issue is patched in 1.8.4 and 2.1.1. There are currently no known workarounds.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected products
- guzzle / psr7< 1.8.4 – < 1.8.4
- guzzle / psr7>= 2.0.0, < 2.1.1 – >= 2.0.0, < 2.1.1
References
- VENDOR_ADVISORYhttps://github.com/guzzle/psr7/security/advisories/GHSA-q7rv-6hp3-vh96
- PATCHhttps://github.com/guzzle/psr7/pull/485/commits/e55afaa3fc138c89adf3b55a8ba20dc60d17f1f1
- PATCHhttps://github.com/guzzle/psr7/pull/486/commits/9a96d9db668b485361ed9de7b5bf1e54895df1dc
- MISChttps://www.drupal.org/sa-core-2022-006