CVE catalog

CVE-2026-61801

golang-github-moby-sys affected and fixed versions

[CVE catalog]

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.

Severity
Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.12% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "golang-github-moby-sys",
      "status": "fixed",
      "release": "sid",
      "version": "0.0~git20260904.79376e0-2"
    },
    {
      "name": "golang-github-moby-sys",
      "status": "fixed",
      "release": "forky",
      "version": "0.0~git20260904.79376e0-2"
    },
    {
      "name": "golang-github-moby-sys",
      "status": "vulnerable",
      "release": "trixie",
      "version": "0.0~git20241107.638aa7c-2"
    },
    {
      "name": "golang-github-moby-sys",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "0.0~git20220606.416188a-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "golang-github-moby-sys",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "0.0~git20260904.79376e0-1"
    },
    {
      "bug": null,
      "name": "golang-github-moby-sys",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "0.0~git20260904.79376e0-1"
    },
    {
      "bug": null,
      "name": "golang-github-moby-sys",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "golang-github-moby-sys",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "github.com/moby/sys/user",
      "ecosystem": "go",
      "fixed_version": "0.4.1",
      "provider_record_id": "GHSA-MJCV-P78Q-W5FW"
    },
    {
      "name": "containerized-data-importer1.65",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.65.0-4.1"
            }
          ]
        }
      ],
      "release": "tumbleweed",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.65.0-4.1",
      "provider_record_id": "OPENSUSE-SU-2026:12235-1"
    },
    {
      "name": "google-osconfig-agent",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20261015.00-159998.1.1"
            }
          ]
        }
      ],
      "release": "linux micro 6.0",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "20261015.00-159998.1.1",
      "provider_record_id": "SUSE-SU-2026:24374-1"
    }
  ]
}

Publisher notes

[trixie] golang-github-moby-sys: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [golang-github-moby-sys-dev]Unknown

    Source package: [golang-github-moby-sys]

    Details (2)

    • 0.0~git20220606.416188a-1 · all · bookworm

      Affected

      dsa · golang-github-moby-sys · debian · bookworm; dsa · golang-github-moby-sys · debian · 12

    • 0.0~git20220606.416188a-1 · all · bookworm

      Affected

      dsa · golang-github-moby-sys · debian · bookworm; dsa · golang-github-moby-sys · debian · 12

[Debian 13 (Trixie)]

  • [golang-github-moby-sys-dev]Unknown

    Source package: [golang-github-moby-sys]

    Details (2)

    • 0.0~git20241107.638aa7c-2 · all · trixie

      Affected

      dsa · golang-github-moby-sys · debian · 13

    • 0.0~git20241107.638aa7c-2 · all · trixie

      Affected

      dsa · golang-github-moby-sys · debian · 13

[openSUSE Tumbleweed]

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]