CVE-2026-61801

CVE Enrichment

CVSS: 5.5 MEDIUM
EPSS: 0.11%
EPSS Percentile: 1.33%
CISA KEV: Not listed

Description

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: security-advisories@github.com
Published: 09-Oct-2026 00:17
Last Modified: 09-Oct-2026 04:35
EPSS Date: 2026-10-14
CWE: CWE-400

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:N /
                            I:N /
                            A:H

References

Last enrichment sync: 14-Oct-2026 22:21
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

CVE-2026-61801 Microsoft October 2026 Updates Fix 1,411 Flaws, Including Three Zero-Days

CVE (1235)

People (2)

MITRE ATT&CK (1)

Vendors (14)

Products (87)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.