CVE-2026-54277
2 advisories.
PyPI/aiohttp CVE-2026-54277: medium, EPSS 0.56%
aiohttp: C HTTP Parser Bypasses max_line_size for Fragmented Lines
Action: Upgrade aiohttp to 3.14.1 or later.
pip install aiohttp==3.14.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.14.1 | - |
Fixed versions
| 3.14.1 |
Sources
- osv: GHSA-63hw-fmq6-xxg2
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-63hw-fmq6-xxg2
- https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d
- https://github.com/aio-libs/aiohttp
CVE-2026-54277 · published · modified · JSON
PyPI/aiohttp CVE-2026-54277: high 7.5, EPSS 0.56%
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
Action: Upgrade aiohttp to 3.14.1 or later.
pip install aiohttp==3.14.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.14.1 | - |
Fixed versions
| 3.14.1 |
Sources
- osv: PYSEC-2026-2110
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-63hw-fmq6-xxg2
- https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d
CVE-2026-54277 · published · modified · JSON