[pkg-vuln] CVE-2026-69244 in aiohttp@3.14.1 #584

New Issue

kert · 2026-08-04T06:01:20Z

kert commented

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

Severity: HIGH
Package: aiohttp @ 3.14.1
Fixed in: 3.14.3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-69244

**Severity:** HIGH **Package:** `aiohttp` @ `3.14.1` **Fixed in:** `3.14.3` AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses **Reference:** https://nvd.nist.gov/vuln/detail/CVE-2026-69244

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. CVE-2026-69244 (C-parser OOB heap read building error messages for malformed chunked responses — CLIENT side): this was the one reachable advisory — aiohttp is our async client under s3fs/gcsfs/aiobotocore. Endpoints are self-hosted RustFS + trusted cloud storage, so a malicious-server trigger was unlikely but an accidental malformed response was possible. 3.14.3 fixes the parser.

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. CVE-2026-69244 (C-parser OOB heap read building error messages for malformed chunked responses — CLIENT side): this was the one reachable advisory — aiohttp is our async client under s3fs/gcsfs/aiobotocore. Endpoints are self-hosted RustFS + trusted cloud storage, so a malicious-server trigger was unlikely but an accidental malformed response was possible. 3.14.3 fixes the parser. **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 23:42:53 +00:00

[pkg-vuln] CVE-2026-69244 in aiohttp@3.14.1 #600

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Reference: homelab/stack#584