CVE-2026-11940

unknowncovered by 1 sourcefirst seen 2026-06-25

Multiple vulnerabilities have been discovered in CPython. Some of them allow an attacker to cause remote denial of service, a breach of data confidentiality, and a breach of data integrity.

CSIRTS triage

What: Multiple vulnerabilities can lead to remote denial of service and breaches of data confidentiality and integrity.
Who is affected: Users of CPython.
Urgency: Remediation is urgent due to the potential for denial of service and data breaches.
Action: Apply updates as they become available.

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

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Exploitation outlook

Low exploitation risk0.61% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownMultiple vulnerabilities in CPython (June 25, 2026)cert-fr-avis · 2026-06-25

External references

NVD record for CVE-2026-11940

CVE.org record

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