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.
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History
Sat, 24 Oct 2026 16:00:00 +0000
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| First Time appeared |
Python
Python cpython Python Software Foundation Python Software Foundation cpython |
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| Vendors & Products |
Python
Python cpython Python Software Foundation Python Software Foundation cpython |
Sat, 24 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Distrust compromised intermediate certificates in ssl module | |
| Weaknesses | CWE-299 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: PSF
Published:
Updated: 2026-10-24T14:20:50.539Z
Reserved: 2026-10-22T21:32:20.396Z
Link: CVE-2026-115557
No data.
Status : Received
Published: 2026-10-24T15:17:33.600
Modified: 2026-10-24T15:17:33.600
Link: CVE-2026-115557
No data.
OpenCVE Enrichment
Updated: 2026-10-24T16:00:18Z
Weaknesses