CVE-2026-61801 — github.com/moby/sys/user has a possible DoS via unbounded parsing of user and group database files
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 suffici…
Published: 2026-10-08 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7