Resource Exhaustion Affecting neuvector package, versions <5.6.2-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-NEUVECTOR-20775087
  • published10 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-61801  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Chainguard neuvector to version 5.6.2-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream neuvector package and not the neuvector package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1