GHSA-mwh4-6h8g-pg8wLow
AIOHTTP has HTTP response splitting via \r in reason phrase
🔗 CVE IDs covered (1)
📋 Description
Summary
An attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits.
Impact
In the unlikely situation that an application allows untrusted data to be used in the response's reason parameter, then an attacker could manipulate the response to send something different from what the developer intended.
Patch: https://github.com/aio-libs/aiohttp/commit/53b35a2f8869c37a133e60bf1a82a1c01642ba2b
🎯 Affected products1
- pip/aiohttp:<= 3.13.3
🔗 References (5)
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mwh4-6h8g-pg8w
- https://nvd.nist.gov/vuln/detail/CVE-2026-34519
- https://github.com/aio-libs/aiohttp/commit/53b35a2f8869c37a133e60bf1a82a1c01642ba2b
- https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4
- https://github.com/advisories/GHSA-mwh4-6h8g-pg8w