CVE-2026-51083

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-07-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 17, 2026

Advisory Details (1)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

Proxmox Virtual Environment - Security Advisories | Page 2 | Proxmox Support Forum

https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-84997

Vendor Advisories for CVE-2026-51083(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-30 16:28 UTCEPSS rescore
  2. 2026-07-30 16:25 UTCEG score recompute
  3. 2026-07-30 16:24 UTCGHSA enrichment
  4. 2026-07-30 01:30 UTCEPSS rescore
  5. 2026-07-29 15:11 UTCEG score recompute
  6. 2026-07-29 15:11 UTCGHSA enrichment
  7. 2026-07-28 15:37 UTCEPSS rescore
  8. 2026-07-28 13:58 UTCEG score recompute
  9. 2026-07-28 13:57 UTCGHSA enrichment
  10. 2026-07-27 12:43 UTCEG score recompute
  11. 2026-07-27 12:43 UTCGHSA enrichment
  12. 2026-07-26 14:54 UTCEPSS rescore
  13. 2026-07-26 11:23 UTCEG score recompute
  14. 2026-07-26 11:23 UTCGHSA enrichment
  15. 2026-07-25 14:18 UTCEPSS rescore
  16. 2026-07-24 14:18 UTCEPSS rescore
  17. 2026-07-23 14:18 UTCEPSS rescore
  18. 2026-07-23 03:19 UTCEG score recompute
  19. 2026-07-22 14:08 UTCEPSS rescore
  20. 2026-07-21 15:25 UTCEPSS rescore
  21. 2026-07-20 17:08 UTCEPSS rescore
  22. 2026-07-19 14:31 UTCEPSS rescore
  23. 2026-07-19 14:31 UTCEPSS rescore
  24. 2026-07-19 02:30 UTCEG score recompute
  25. 2026-07-19 02:30 UTCGHSA enrichment
Show 6 more
  1. 2026-07-19 02:29 UTCEPSS rescore
  2. 2026-07-17 15:50 UTCEG score recompute▲ 6.50
  3. 2026-07-17 15:50 UTCGHSA enrichment
  4. 2026-07-17 15:49 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  5. 2026-07-17 14:50 UTCEG score recompute
  6. 2026-07-17 14:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51083?
CVE-2026-51083 is a medium vulnerability published on July 17, 2026. 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.
When was CVE-2026-51083 disclosed?
CVE-2026-51083 was first published in the National Vulnerability Database on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51083 actively exploited?
CVE-2026-51083 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.8% of all scored CVEs.
What is the CVSS score of CVE-2026-51083?
CVE-2026-51083 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51083?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51083, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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