{"id":"DEBIAN-CVE-2026-61801","details":"The `github.com/moby/sys/user` package provides Go utilities for parsing and looking up entries in Unix-style user and group database files. Versions before 0.4.1 do not sufficiently limit entries when parsing `/etc/passwd`- or `/etc/group`-style files, allowing an attacker who can supply a specially crafted file to cause excessive memory consumption and potentially terminate the affected process due to an out-of-memory condition. This issue is patched in version 0.4.1. As a workaround, avoid parsing attacker-controlled user or group database files, or validate and limit untrusted input before parsing it.","modified":"2026-10-10T11:00:10.238652101Z","published":"2026-10-08T17:17:17.433Z","upstream":["CVE-2026-61801"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-61801"}],"affected":[{"package":{"name":"golang-github-moby-sys","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-moby-sys?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20220606.416188a-1","0.0~git20231105.a4e0878-1","0.0~git20240807.5447519-1","0.0~git20240807.5447519-2","0.0~git20241107.638aa7c-1","0.0~git20241107.638aa7c-2","0.0~git20250819.9dc3a90-1","0.0~git20260904.79376e0-1","0.0~git20260904.79376e0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-61801.json"}},{"package":{"name":"golang-github-moby-sys","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-moby-sys?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20241107.638aa7c-2","0.0~git20250819.9dc3a90-1","0.0~git20260904.79376e0-1","0.0~git20260904.79376e0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-61801.json"}},{"package":{"name":"golang-github-moby-sys","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-moby-sys?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0~git20260904.79376e0-1"}]}],"versions":["0.0~git20241107.638aa7c-2","0.0~git20250819.9dc3a90-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-61801.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}