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Vulnerability in CPython (July 2, 2026)

unknownCVE-2026-4360
A vulnerability has been discovered in CPython. It allows an attacker to bypass the security policy.

CSIRTS triage

vendor: CPythonproduct: CPythonAuthentication bypass
What
A vulnerability allows for security policy bypass.
Who is affected
Users of CPython are affected.
Urgency
Remediation is urgent due to the potential for exploitation.
Action
Apply patches or mitigations as provided by CPython.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-FR Avis de sécurité (FR · national-cert · site)
Severity
unknown
Published
2026-07-02
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0828/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-4360coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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