Vulnerability in Python Software Foundation Cpython
CVE-2026-116566
socket.getaddrinfo() previously accepted null bytes within *host* and *port* parameters which can cause the values to be silently truncated.
Published · last modified .
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/python/cpython/pull/160899 (patch)
- github.com/python/cpython/issues/160898 (issue-tracking)
- mail.python.org/archives/list/security-announce@python.org/thread/HCHE62VYTPYI6… (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
- github.com/python/cpython/commit/131a3a66c5f400b588f9fd2732a5ed4e89623ee3 (patch)