Red Hat Libuser Race Condition Vulnerability

Red Hat Libuser

Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation. Added to CISA KEV on 2026-08-26 (federal deadline 2026-09-09).

First seen: 26 Aug 2026
Last update: 26 Aug 2026, 12:00 UTC
Identifiers: CVE-2015-3246
Source: CISA KEV

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Red Hat Libuser Race Condition Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Red Hat Libuser
Ids: CVE-2015-3246

Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation. Added to CISA KEV on 2026-08-26 (federal deadline 2026-09-09).

## Steps
1. Search the repo, its CI and infra config for Red Hat Libuser. If present, report the version in use and whether it's affected.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2015-3246") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2015-3246
https://pwned.coffee/i/red-hat-libuser-race-condition-vulnerability-cve-2015-3246

Sources

NVD: CVE-2015-3246

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