CVE-2026-65916

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. the CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

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

CyberPanel through 1.9.1, fixed in commit b198460, contains a missing authorization vulnerability in the cancelBackupCreation handler that allows authenticated users to kill, delete, and corrupt other tenants' backups. Attackers can send crafted POST requests with arbitrary backupCancellationDomain and fileName parameters to terminate backup processes, delete backup archives, corrupt backup status files, and remove database records belonging to other tenants.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Jul 23, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

CyberPanel Missing Authorization in cancelBackupCreation Handler | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cyberpanel-missing-authorization-in-cancelbackupcreation-handler
generic

[BUG] Missing authorization in backup cancelBackupCreation lets any user kill and delete another tenant's backups Package: cyberpanel (usmannasir/cyberpanel) · Issue #1829 · usmannasir/cyberpanel · GitHub

https://github.com/usmannasir/cyberpanel/issues/1829
github_commit

commit b1984603f9b0 (usmannasir/cyberpanel)

Fix landed in usmannasir/cyberpanel commit b1984603f9b0 — awaiting tagged release

https://github.com/usmannasir/cyberpanel/commit/b1984603f9b0099b39bca46fea176e53b6d4d601

Vendor Advisories for CVE-2026-65916(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 23× in last 7d / 39× 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. 2026-08-03 13:04 UTCGHSA enrichment
  2. 2026-08-03 00:09 UTCGHSA enrichment
  3. 2026-08-02 11:16 UTCEG score recompute
  4. 2026-08-02 11:16 UTCGHSA enrichment
  5. 2026-08-02 02:27 UTCEPSS rescore
  6. 2026-08-01 22:23 UTCGHSA enrichment
  7. 2026-08-01 09:30 UTCEG score recompute
  8. 2026-08-01 09:30 UTCGHSA enrichment
  9. 2026-08-01 04:16 UTCEPSS rescore
  10. 2026-07-31 20:36 UTCGHSA enrichment
  11. 2026-07-31 07:43 UTCGHSA enrichment
  12. 2026-07-30 18:49 UTCEG score recompute
  13. 2026-07-30 18:49 UTCGHSA enrichment
  14. 2026-07-30 16:28 UTCEPSS rescore
  15. 2026-07-30 05:08 UTCEG score recompute
  16. 2026-07-30 05:08 UTCGHSA enrichment
  17. 2026-07-30 01:30 UTCEPSS rescore
  18. 2026-07-29 16:15 UTCGHSA enrichment
  19. 2026-07-29 03:21 UTCEG score recompute
  20. 2026-07-29 03:21 UTCGHSA enrichment
  21. 2026-07-28 15:37 UTCEPSS rescore
  22. 2026-07-28 14:25 UTCGHSA enrichment
  23. 2026-07-28 01:30 UTCGHSA enrichment
  24. 2026-07-27 17:55 UTCEG score recompute
  25. 2026-07-27 17:55 UTCGHSA enrichment
Show 14 more
  1. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-27 04:55 UTCGHSA enrichment
  3. 2026-07-26 16:00 UTCEG score recompute
  4. 2026-07-26 16:00 UTCGHSA enrichment
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-26 03:07 UTCEG score recompute
  8. 2026-07-26 03:07 UTCGHSA enrichment
  9. 2026-07-25 14:18 UTCEPSS rescore
  10. 2026-07-25 14:18 UTCEPSS rescore
  11. 2026-07-24 14:18 UTCEPSS rescore
  12. 2026-07-24 14:18 UTCEPSS rescore
  13. 2026-07-23 16:17 UTCEG score recompute
  14. 2026-07-23 16:16 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65916?
CVE-2026-65916 is a high vulnerability published on July 23, 2026. CyberPanel through 1.9.1, fixed in commit b198460, contains a missing authorization vulnerability in the cancelBackupCreation handler that allows authenticated users to kill, delete, and corrupt other tenants' backups. Attackers can send crafted POST requests with arbitrary backupCancellationDomain…
When was CVE-2026-65916 disclosed?
CVE-2026-65916 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65916 actively exploited?
CVE-2026-65916 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 73.8% of all scored CVEs.
What is the CVSS score of CVE-2026-65916?
CVE-2026-65916 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-65916?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65916, 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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