CVE-2026-116566: fallo de gravedad media en Python Software Foundation CPython
socket.getaddrinfo() accepts embedded null bytes in host and port
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.3%
socket.getaddrinfo() previously accepted null bytes within *host* and *port* parameters which can cause the values to be silently truncated.
CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Productos afectados
Python Software Foundation · CPythonCVEs relacionadas — Python Software Foundation CPython
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Referencias
https://github.com/python/cpython/commit/131a3a66c5f400b588f9fd2732a5ed4e89623ee3https://github.com/python/cpython/issues/160898https://github.com/python/cpython/pull/160899https://mail.python.org/archives/list/security-announce@python.org/thread/HCHE62VYTPYI6WOPJQDWUBR4CINBPSM7/http://www.openwall.com/lists/oss-security/2026/10/29/4