Incorrect access control in Proxmox Virtual Environment (PVE) 9.x qemu-server before 9.1.8 and 8.x before 8.4.8 allows users within limited privileges to obtain hashed passwords via the cloudinit/dump API.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00201.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-84997 cve-icon
History

Sun, 26 Jul 2026 10:00:00 +0000

Type Values Removed Values Added
Title Privilege Escalation: Non‑Admin Users Can Retrieve Hashed Passwords via Proxmox Cloudinit API

Wed, 22 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
Title Privilege Escalation: Non‑Admin Users Can Retrieve Hashed Passwords via Proxmox Cloudinit API

Fri, 17 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 17 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
Description Incorrect access control in Proxmox Virtual Environment (PVE) 9.x qemu-server before 9.1.8 and 8.x before 8.4.8 allows users within limited privileges to obtain hashed passwords via the cloudinit/dump API.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-17T15:26:43.644Z

Reserved: 2026-06-07T00:00:00.000Z

Link: CVE-2026-51083

cve-icon Vulnrichment

Updated: 2026-07-17T15:26:35.621Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-26T09:45:03Z

Weaknesses