Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability
Priority LOW 26CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-203.
Summary
Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability
Why it matters now
EPSS 0.012 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-4156
- 2026-10-03 Alias added: GHSA-4p9j-mpxw-9w9g
References
More Proxmox Virtual Environment vulnerabilities
- TI-2022-16050 Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) are vulnerable to SSRF… CVSS 3.1CRITICAL 9.8
- TI-2022-13353 A reflected cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment prior… CVSS 3.1CRITICAL 9.0
- TI-2022-16049 A response-header CRLF injection vulnerability in the Proxmox Virtual Environment (PVE)… CVSS 3.1HIGH 7.1
- TI-2025-35562 A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party… CVSS 3.1MEDIUM 5.4
- TI-2025-35561 A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the… CVSS 3.1MEDIUM 5.4
- TI-2025-35560 A stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2014-4156 · CVE Program
- CVE-2014-4156 · NVD
- FIRST EPSS
- GHSA-4p9j-mpxw-9w9g · GitHub Advisory Database · CC BY 4.0
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