PYSEC-2026-2268
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/pyopenssl/PYSEC-2026-2268.yaml
- JSON Data
- https://api.test.osv.dev/v1/vulns/PYSEC-2026-2268
- Aliases
- Published
- 2026-03-18T00:16:19.107Z
- Modified
- 2026-07-13T07:30:41.941051595Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to
set_tlsext_servername_callbackraised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Starting in version 26.0.0, unhandled exceptions now result in rejecting the connection. - References
Affected packages
PyPI / pyopenssl
Package
- Name
- pyopenssl
- View open source insights on deps.dev
- Purl
- pkg:pypi/pyopenssl