Mirror-registry: local privilege escalation due to incorrect permissions in mirror-registry
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA mirror-registry Fixed in 2
- Fix · CNA MIRROR-REGISTRY-2.0-RHEL-8 (Red Hat) Fixed in v2.0.7-9
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| mirror registry for Red Hat OpenShift | Affected | No fix yet |
| mirror registry 2.0.0 for RHEL 8 | Fixed | — |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3528
- 2026-10-03 Alias added: GHSA-4mjc-w6xm-8xxc
References
More Red Hat vulnerabilities
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Sources
- CVE-2025-3528 · CVE Program
- CVE-2025-3528 · NVD
- FIRST EPSS
- GHSA-4mjc-w6xm-8xxc · GitHub Advisory Database · CC BY 4.0
- CVE-2025-3528 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences