PYSEC-2026-2269
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/pyopenssl/PYSEC-2026-2269.yaml
- JSON Data
- https://api.test.osv.dev/v1/vulns/PYSEC-2026-2269
- Aliases
- Published
- 2026-03-18T00:16:19.273Z
- Modified
- 2026-07-13T07:30:41.969967007Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to
set_cookie_generate_callbackreturned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected. - References
-
- https://access.redhat.com/security/cve/CVE-2026-27459
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json
- https://access.redhat.com/errata/RHSA-2026:10754
- https://access.redhat.com/errata/RHSA-2026:11856
- https://access.redhat.com/errata/RHSA-2026:11916
- https://access.redhat.com/errata/RHSA-2026:11996
- https://access.redhat.com/errata/RHSA-2026:13508
- https://access.redhat.com/errata/RHSA-2026:13512
- https://access.redhat.com/errata/RHSA-2026:13545
- https://access.redhat.com/errata/RHSA-2026:13553
- https://access.redhat.com/errata/RHSA-2026:14835
- https://access.redhat.com/errata/RHSA-2026:14873
- https://access.redhat.com/errata/RHSA-2026:14874
- https://access.redhat.com/errata/RHSA-2026:19375
- https://access.redhat.com/errata/RHSA-2026:21017
- https://access.redhat.com/errata/RHSA-2026:22465
- https://access.redhat.com/errata/RHSA-2026:24853
- https://access.redhat.com/errata/RHSA-2026:7224
- https://access.redhat.com/errata/RHSA-2026:8437
- https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst
- https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4
- https://bugzilla.redhat.com/show_bug.cgi?id=2448503
- https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408
Affected packages
PyPI / pyopenssl
Package
- Name
- pyopenssl
- View open source insights on deps.dev
- Purl
- pkg:pypi/pyopenssl