[pkg-vuln] CVE-2026-69243 in aiohttp@3.14.1 #586

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kert · 2026-08-04T06:01:20Z

kert commented

2026-08-04 06:01:20 +00:00

Severity: MEDIUM
Package: aiohttp @ 3.14.1
Fixed in: 3.14.2

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing b

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-69243

**Severity:** MEDIUM **Package:** `aiohttp` @ `3.14.1` **Fixed in:** `3.14.2` AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing b **Reference:** https://nvd.nist.gov/vuln/detail/CVE-2026-69243

kert added this to the P21: Package Supply Chain — inventory, mirrors, drift, vuln scanning milestone 2026-08-04 06:01:20 +00:00

kert added the quality ci labels 2026-08-04 06:01:20 +00:00

kert commented

2026-08-13 00:36:17 +00:00

aiohttp 3.14.1→3.14.3 (fix landed in 3.14.2). CVE-2026-69243 (server-side WS upgrade request smuggling): we run no aiohttp server component at all (FastAPI/uvicorn serve HTTP); server-side smuggling path does not exist in this deployment.

Verification: bumped in commit 611a1d6 (pyproject floor raised for the direct dep; transitive pins via uv lock -P; pkg-manifest regenerated). Full test suite green with the bumped packages installed: 14,023 passed / 1 skipped (serial proof run 26m45s, then the commit hook's parallel run 13m58s). tests/api (the JWT/crypto surface) 335 passed post-bump.

aiohttp 3.14.1→3.14.3 (fix landed in 3.14.2). CVE-2026-69243 (server-side WS upgrade request smuggling): we run no aiohttp server component at all (FastAPI/uvicorn serve HTTP); server-side smuggling path does not exist in this deployment. **Verification:** bumped in commit 611a1d6 (pyproject floor raised for the direct dep; transitive pins via `uv lock -P`; pkg-manifest regenerated). Full test suite green with the bumped packages installed: 14,023 passed / 1 skipped (serial proof run 26m45s, then the commit hook's parallel run 13m58s). `tests/api` (the JWT/crypto surface) 335 passed post-bump.

kert closed this issue

2026-08-13 00:36:17 +00:00

kert referenced this issue

2026-08-13 23:42:54 +00:00

[pkg-vuln] CVE-2026-69243 in aiohttp@3.14.1 #602

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Reference: homelab/stack#586