CVE-2026-0864
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 risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (2)
- unknownMultiple vulnerabilities in CPython (June 25, 2026)cert-fr-avis · 2026-06-25
- unknownCVE-2026-0864: Configuration Injection via Carriage Return (\r) in write() methodmsrc · 2026-06-09
External references
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