CVE-2026-54275
2 advisories.
PyPI/aiohttp CVE-2026-54275: low, EPSS 0.47%
aiohttp: TLS Server Hostname Override Is Ignored When Reusing HTTPS Connections
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-4m7w-qmgq-4wj5
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-4m7w-qmgq-4wj5
- https://github.com/aio-libs/aiohttp
CVE-2026-54275 · published · modified · JSON
PyPI/aiohttp CVE-2026-54275: high 7.5, EPSS 0.47%
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_hostname TLS SNI check can be bypassed when an existing connection is reused. If an applicat
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
CVE-2026-54275 · published · modified · JSON