CVE-2026-115557
Severity not reportedData quality: awaiting analysis.
NVD has not completed analysis, so CVSS and affected-product data may be missing or change.
Python has added a denylist for known compromised certificates to the "ssl" module to ensure user safety even without certificate revocation configured.
Python has added a denylist for known compromised certificates to the "ssl" module to ensure user safety even without certificate revocation configured. Known compromised certificates will automatically be rejected regardless of the SSLContext policy configuration.
CVSS
—
Awaiting analysis by NVD
Timeline (UTC)
Published: 2026-10-24 15:17
Modified: 2026-10-27 01:19
NVD status: Awaiting Analysis
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- http://www.openwall.com/lists/oss-security/2026/10/20/29 cna@python.org
- https://emudhra.we-have-a-problem.com/ cna@python.org
- https://github.com/python/cpython/commit/21a50891ab4be2e9955239e625ae2b40c6b1854d cna@python.org
- https://github.com/python/cpython/commit/36cd295f32fc9ba19399e01abee91231440a41dd cna@python.org
- https://github.com/python/cpython/commit/48d9b2712cd52206c7a5882d0fdca4863ed65e93 cna@python.org
- https://github.com/python/cpython/commit/7dd8b4736a1419750b94a388e6d158be15836fe6 cna@python.org
- https://github.com/python/cpython/commit/98f0e4ed349f370dc8a00366da1a9797e11c9ed5 cna@python.org
- https://github.com/python/cpython/commit/a17d9ef549008133eadf20689b1f4787902efe5b cna@python.org
- https://github.com/python/cpython/commit/af52b41afa4330fb38583db553631baa2f122f90 cna@python.org
- https://github.com/python/cpython/commit/c7fd7edf7e0d122a3973cf676fae21b6aaa650a8 cna@python.org
- https://github.com/python/cpython/commit/e2a9dd97ef9571c710ac0afaa834c8879aebce78 cna@python.org
- https://github.com/python/cpython/commit/e4500d8a437ee5b988a5410cb9b59d177aa01370 cna@python.org
- https://github.com/python/cpython/commit/e4f63e65a93cf44c14274aa987e644b8c003625e cna@python.org
- https://github.com/python/cpython/commit/e9bf2cf84eebf838a1edaa1c648c2b36345b99d3 cna@python.org
- https://github.com/python/cpython/issues/160040 cna@python.org
- https://github.com/python/cpython/pull/160042 cna@python.org
- https://mail.python.org/archives/list/security-announce@python.org/thread/FNAJMZV6XQYLVPAB... cna@python.org
- http://www.openwall.com/lists/oss-security/2026/10/24/5 af854a3a-2127-422b-91ae-364da2661108
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗