https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T18:10:09.600151+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-54277 CVE-2026-54277 — AIOHTTP: C HTTP Parser Bypasses max_line_size for Fragmented Lines 2026-09-29T18:10:10.597148+00:00

Affected: aio-libs aiohttp

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.

 https://vulnerability.circl.lu/vuln/ghsa-63hw-fmq6-xxg2 GHSA-63hw-fmq6-xxg2 — aiohttp: C HTTP Parser Bypasses max_line_size for Fragmented Lines 2026-09-29T18:10:10.597276+00:00

Affected: PyPI: aiohttp

### Summary

It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser.

### Impact

If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS.

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Patch: https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d

 https://vulnerability.circl.lu/vuln/pysec-2026-2110 PYSEC-2026-2110 2026-09-29T18:10:10.597341+00:00

Affected: PyPI: aiohttp

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.