CERT-FR flags multiple CPython vulnerabilities allowing security policy bypass (CERTFR-2026-AVI-1379)
CERT-FR published advisory CERTFR-2026-AVI-1379 on multiple vulnerabilities in CPython. An attacker could exploit them to bypass the security policy. The advisory affects CPython versions that lack the latest security patch and relies on two Python security announcements dated 22 and 24 October 2026. It does not report active exploitation, CVSS scores or IOCs.
Entenda a falha
A vulnerabilidade
CERT-FR advisory CERTFR-2026-AVI-1379 covers multiple vulnerabilities in CPython, tracked as CVE-2026-114583 and CVE-2026-115557. According to the advisory, an attacker can exploit them to bypass the security policy. The advisory does not give the affected component, the attacker's requirements, the affected version numbers or the fixed versions. It only says 'CPython without the latest security patch', and refers to Python security announcements of 22 and 24 October 2026. It does not rank the two CVEs by severity.
Como funciona
The articles do not describe how the vulnerable process works. The advisory gives no input, component or step where the software goes wrong; it only states the outcome, a security policy bypass. Any more detail would be in the Python security announcements it cites, which were not part of the material.
Por que é vulnerável
The root cause is not stated in the advisory. It only classifies the impact as a security policy bypass, without saying whether this comes from a missing check, a logic error or something else. It also says nothing about why the flaws went unnoticed or what the fix changes. The details should be in the Python security bulletins.
Como foi descoberta
The advisory does not say who found the flaws or how. It states that multiple vulnerabilities were discovered in CPython and relies on two Python security announcements, published on 22 October 2026 (thread 43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK) and 24 October 2026 (thread FNAJMZV6XQYLVPABNINDMF3VF66AYLW4). CERT-FR published its advisory on 26 October 2026. It reports no exploitation in the wild.
Explicação gerada por IA a partir da matéria e dos artigos, em 28/10/2026 14:24.
Detalhes técnicos
- Impact listed: security policy bypass.
- Tracked CVEs: CVE-2026-114583 and CVE-2026-115557.
- The advisory gives no root cause, attack vector or affected version numbers. It only refers to CPython without the latest security fix.
- Vendor references: Python security-announce threads 43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK (22 October 2026) and FNAJMZV6XQYLVPABNINDMF3VF66AYLW4 (24 October 2026).
Remediação
- Apply the fixes described in the Python security bulletins, as CERT-FR directs.
- Update CPython to the latest patched release.
Linha do tempo
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CERT-FR flags multiple CPython vulnerabilities allowing security policy bypass (CERTFR-2026-AVI-1379)
ler a análise desta fonte ocultar
CERT-FR published advisory CERTFR-2026-AVI-1379 on multiple vulnerabilities in CPython. An attacker could exploit them to bypass the security policy. The advisory affects CPython versions that lack the latest security patch and relies on two Python security announcements dated 22 and 24 October 2026. It does not report active exploitation, CVSS scores or IOCs.
Technical Details
- Impact listed: security policy bypass.
- Tracked CVEs: CVE-2026-114583 and CVE-2026-115557.
- The advisory gives no root cause, attack vector or affected version numbers. It only refers to CPython without the latest security fix.
- Vendor references: Python security-announce threads 43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK (22 October 2026) and FNAJMZV6XQYLVPABNINDMF3VF66AYLW4 (24 October 2026).
Remediation
- Apply the fixes described in the Python security bulletins, as CERT-FR directs.
- Update CPython to the latest patched release.