CVE-2026-65916

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM 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(medium)
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
41%
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 16× in last 7d / 82× 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.

Showing the most recent 100 of 172 total refreshes for this CVE.

  1. 2026-09-14 16:14 UTCGHSA enrichment
  2. 2026-09-14 01:59 UTCEG score recompute
  3. 2026-09-14 01:59 UTCGHSA enrichment
  4. 2026-09-13 13:06 UTCGHSA enrichment
  5. 2026-09-13 00:13 UTCEG score recompute
  6. 2026-09-13 00:13 UTCGHSA enrichment
  7. 2026-09-12 09:31 UTCGHSA enrichment
  8. 2026-09-11 20:27 UTCEG score recompute
  9. 2026-09-11 20:27 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 09:37 UTCEPSS rescore
  12. 2026-09-11 07:16 UTCGHSA enrichment
  13. 2026-09-10 15:09 UTCEG score recompute
  14. 2026-09-10 15:09 UTCGHSA enrichment
  15. 2026-09-09 08:55 UTCEG score recompute
  16. 2026-09-09 08:55 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 21:29 UTCEG score recompute
  19. 2026-09-07 21:29 UTCGHSA enrichment
  20. 2026-09-07 16:01 UTCEPSS rescore
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-06 08:43 UTCGHSA enrichment
  23. 2026-09-05 19:51 UTCEG score recompute
  24. 2026-09-05 19:51 UTCGHSA enrichment
  25. 2026-09-05 15:31 UTCEPSS rescore
Show 75 more
  1. 2026-09-05 06:58 UTCEG score recompute
  2. 2026-09-05 06:58 UTCGHSA enrichment
  3. 2026-09-04 13:15 UTCEG score recompute
  4. 2026-09-04 13:15 UTCGHSA enrichment
  5. 2026-09-04 05:07 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 23:22 UTCEG score recompute
  8. 2026-09-01 23:22 UTCGHSA enrichment
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-31 02:20 UTCEG score recompute
  12. 2026-08-31 02:20 UTCGHSA enrichment
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 13:26 UTCEG score recompute
  15. 2026-08-30 13:26 UTCGHSA enrichment
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-30 00:32 UTCEG score recompute
  18. 2026-08-30 00:32 UTCGHSA enrichment
  19. 2026-08-28 21:42 UTCEPSS rescore
  20. 2026-08-27 23:46 UTCEG score recompute
  21. 2026-08-27 23:46 UTCGHSA enrichment
  22. 2026-08-27 10:53 UTCGHSA enrichment
  23. 2026-08-26 22:00 UTCEG score recompute
  24. 2026-08-26 21:59 UTCGHSA enrichment
  25. 2026-08-26 14:47 UTCEPSS rescore
  26. 2026-08-26 08:54 UTCGHSA enrichment
  27. 2026-08-25 19:56 UTCEG score recompute
  28. 2026-08-25 19:56 UTCGHSA enrichment
  29. 2026-08-25 13:49 UTCEPSS rescore
  30. 2026-08-25 07:04 UTCGHSA enrichment
  31. 2026-08-24 18:11 UTCEG score recompute
  32. 2026-08-24 18:11 UTCGHSA enrichment
  33. 2026-08-24 03:56 UTCGHSA enrichment
  34. 2026-08-23 15:03 UTCGHSA enrichment
  35. 2026-08-23 02:10 UTCEG score recompute
  36. 2026-08-23 02:10 UTCGHSA enrichment
  37. 2026-08-23 00:19 UTCEPSS rescore
  38. 2026-08-22 13:17 UTCGHSA enrichment
  39. 2026-08-22 00:24 UTCEG score recompute
  40. 2026-08-22 00:24 UTCGHSA enrichment
  41. 2026-08-21 23:49 UTCEPSS rescore
  42. 2026-08-21 11:31 UTCEG score recompute
  43. 2026-08-21 11:31 UTCGHSA enrichment
  44. 2026-08-20 22:56 UTCEPSS rescore
  45. 2026-08-20 22:33 UTCGHSA enrichment
  46. 2026-08-20 09:39 UTCGHSA enrichment
  47. 2026-08-19 20:46 UTCEG score recompute
  48. 2026-08-19 20:46 UTCGHSA enrichment
  49. 2026-08-19 17:04 UTCEPSS rescore
  50. 2026-08-19 07:53 UTCGHSA enrichment
  51. 2026-08-18 18:59 UTCEG score recompute
  52. 2026-08-18 18:59 UTCGHSA enrichment
  53. 2026-08-18 13:48 UTCEPSS rescore
  54. 2026-08-18 01:27 UTCEG score recompute
  55. 2026-08-18 01:27 UTCGHSA enrichment
  56. 2026-08-17 13:47 UTCEPSS rescore
  57. 2026-08-17 12:07 UTCGHSA enrichment
  58. 2026-08-16 23:13 UTCEG score recompute
  59. 2026-08-16 23:13 UTCGHSA enrichment
  60. 2026-08-16 14:56 UTCEPSS rescore
  61. 2026-08-16 10:19 UTCEG score recompute
  62. 2026-08-16 10:19 UTCGHSA enrichment
  63. 2026-08-15 21:27 UTCGHSA enrichment
  64. 2026-08-15 08:34 UTCEG score recompute
  65. 2026-08-15 08:34 UTCGHSA enrichment
  66. 2026-08-15 01:30 UTCEPSS rescore
  67. 2026-08-14 19:40 UTCGHSA enrichment
  68. 2026-08-14 06:47 UTCEG score recompute
  69. 2026-08-14 06:47 UTCGHSA enrichment
  70. 2026-08-13 22:00 UTCEPSS rescore
  71. 2026-08-13 17:55 UTCGHSA enrichment
  72. 2026-08-13 04:58 UTCGHSA enrichment
  73. 2026-08-12 16:06 UTCEG score recompute
  74. 2026-08-12 16:06 UTCGHSA enrichment
  75. 2026-08-12 13:51 UTCEPSS rescore

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 59.4% 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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