CVE-2026-69243: AIOHTTP: HTTP request smuggling via WebSocket upgrade
The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.
References
- github.com/advisories/GHSA-mfx4-hv73-q22v
- github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98
- github.com/aio-libs/aiohttp/pull/13017
- github.com/aio-libs/aiohttp/releases/tag/v3.14.2
- github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v
- nvd.nist.gov/vuln/detail/CVE-2026-69243
Code Behaviors & Features
Detect and mitigate CVE-2026-69243 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →