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🚨 Attention, elevated activities detected targeting PSF Python (CVE-2026-115557) vuldb.com/vuln/426133/cti https://t.co/GOvZdHxYCF
0000030
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CVE-2026-115557
LOWCVSS 9.4 · CRITICALSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD 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.
0.0/ 10 priority
Sources & remediation
Other references
- http://www.openwall.com/lists/oss-security/2026/10/20/29
- https://emudhra.we-have-a-problem.com/
- https://github.com/python/cpython/commit/21a50891ab4be2e9955239e625ae2b40c6b1854d
- https://github.com/python/cpython/commit/36cd295f32fc9ba19399e01abee91231440a41dd
- https://github.com/python/cpython/commit/48d9b2712cd52206c7a5882d0fdca4863ed65e93
Weakness type (CWE)
CWE-299
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
Threat summary
- 2 mentions across 2 observed days
- Momentum state: stable
What's happening
- Peaked 1d ago at 1 mentions (2026-10-24); latest day: 1
- 2 total mentions across 2 days
Deep dive
Activity timeline2 mentions / 2d
Referenced assets1 URL
Full discourse2 posts
Severity Daily@severitydailyPython scored its eMudhra certificate exposure 9.4 critical against every CPython ever released, and the pull request its own record tags as the patch has not merged. No exploitation reported. https://severitydaily.com/python-cve-2026-115557-9-4-emudhra-cpython-0-to-3-16-0-patch-unmerged-pull-request-160042/
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