CVE-2026-51083: n/a
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.
AI Analysis
Technical Summary
CVE-2026-51083 is an access control vulnerability in Proxmox Virtual Environment (PVE) affecting versions 9.x prior to 9.1.8 and 8.x prior to 8.4.8. The flaw allows users with limited privileges to access hashed passwords through the cloudinit/dump API endpoint. The vulnerability is classified under CWE-284 (Improper Access Control) and has a CVSS 3.1 base score of 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). No official patch or remediation guidance is currently provided in the available information, and there are no known exploits in the wild.
Potential Impact
An attacker with limited privileges can obtain hashed passwords, leading to a confidentiality breach. The vulnerability does not impact integrity or availability. The hashed passwords could potentially be used in further attacks if cracked, but the direct impact is limited to unauthorized disclosure of sensitive credential data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the cloudinit/dump API to trusted users only and monitor for any unusual access patterns. Avoid granting unnecessary privileges to users who do not require them.
CVE-2026-51083: n/a
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.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-51083 is an access control vulnerability in Proxmox Virtual Environment (PVE) affecting versions 9.x prior to 9.1.8 and 8.x prior to 8.4.8. The flaw allows users with limited privileges to access hashed passwords through the cloudinit/dump API endpoint. The vulnerability is classified under CWE-284 (Improper Access Control) and has a CVSS 3.1 base score of 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). No official patch or remediation guidance is currently provided in the available information, and there are no known exploits in the wild.
Potential Impact
An attacker with limited privileges can obtain hashed passwords, leading to a confidentiality breach. The vulnerability does not impact integrity or availability. The hashed passwords could potentially be used in further attacks if cracked, but the direct impact is limited to unauthorized disclosure of sensitive credential data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the cloudinit/dump API to trusted users only and monitor for any unusual access patterns. Avoid granting unnecessary privileges to users who do not require them.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-07T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5b5ecb2d1edb114c7fc03a
Added to database: 07/18/2026, 11:08:59 UTC
Last enriched: 07/18/2026, 12:07:41 UTC
Last updated: 07/18/2026, 13:16:28 UTC
Views: 2
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