| Name | CVE-2026-116566 |
| Description | socket.getaddrinfo() previously accepted null bytes within *host* and *port* parameters which can cause the values to be silently truncated. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python3.11 (PTS) | bookworm | 3.11.2-6+deb12u8 | vulnerable |
| bookworm (security) | 3.11.2-6+deb12u9 | vulnerable |
| python3.13 (PTS) | trixie | 3.13.5-2+deb13u5 | vulnerable |
| sid | 3.13.18-1 | vulnerable |
| python3.14 (PTS) | forky | 3.14.8-1 | vulnerable |
| sid | 3.14.10-1 | vulnerable |
| python3.15 (PTS) | forky | 3.15.0-1 | vulnerable |
| sid | 3.15.2-1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
https://github.com/python/cpython/issues/160898
https://github.com/python/cpython/pull/160899