CVE-2026-71966

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server's API response. Attackers can inject malicious commands through a crafted directory name in the remote server's API response, which bypasses security middleware validation and is passed unsanitized to the OS command execution function.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
2%
EPSS %ILE
80%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Aug 10, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

CyberPanel 2.4.3 Authenticated Command Injection via starRemoteTransfer | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cyberpanel-authenticated-command-injection-via-starremotetransfer
github_commit

commit eca0c3cbeb35 (usmannasir/cyberpanel)

Fix landed in usmannasir/cyberpanel commit eca0c3cbeb35 — awaiting tagged release

https://github.com/usmannasir/cyberpanel/commit/eca0c3cbeb35af8eaae9fafb094e8ef3cd923643
generic🟡 PoC Available

Authenticated RCE and File Read Vulnerabilities Found in CyberPanel | McSam's blog

https://themcsam.github.io/posts/cyberpanel-2.4.3-vulnerabilties/

Vendor Advisories for CVE-2026-71966(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 35× in last 7d / 51× 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. 2026-08-21 05:43 UTCEG score recompute
  2. 2026-08-21 05:43 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 18:03 UTCGHSA enrichment
  5. 2026-08-20 06:23 UTCGHSA enrichment
  6. 2026-08-19 18:43 UTCEG score recompute
  7. 2026-08-19 18:43 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 06:23 UTCGHSA enrichment
  10. 2026-08-18 18:38 UTCEG score recompute
  11. 2026-08-18 18:38 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 06:58 UTCGHSA enrichment
  15. 2026-08-17 19:18 UTCEG score recompute
  16. 2026-08-17 19:18 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 06:38 UTCGHSA enrichment
  19. 2026-08-16 18:59 UTCEG score recompute
  20. 2026-08-16 18:59 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 07:18 UTCEG score recompute
  24. 2026-08-16 07:18 UTCGHSA enrichment
  25. 2026-08-16 02:15 UTCEPSS rescore
Show 26 more
  1. 2026-08-15 19:39 UTCGHSA enrichment
  2. 2026-08-15 07:59 UTCEG score recompute
  3. 2026-08-15 07:59 UTCGHSA enrichment
  4. 2026-08-15 01:31 UTCEPSS rescore
  5. 2026-08-14 20:18 UTCEG score recompute
  6. 2026-08-14 20:18 UTCGHSA enrichment
  7. 2026-08-14 19:39 UTCEG score recompute
  8. 2026-08-14 19:39 UTCGHSA enrichment
  9. 2026-08-14 17:10 UTCEG score recompute
  10. 2026-08-14 17:10 UTCGHSA enrichment
  11. 2026-08-14 06:13 UTCEG score recompute
  12. 2026-08-14 06:13 UTCGHSA enrichment
  13. 2026-08-13 22:00 UTCEPSS rescore
  14. 2026-08-13 18:33 UTCGHSA enrichment
  15. 2026-08-13 06:53 UTCGHSA enrichment
  16. 2026-08-12 19:09 UTCEG score recompute
  17. 2026-08-12 19:09 UTCGHSA enrichment
  18. 2026-08-12 13:51 UTCEPSS rescore
  19. 2026-08-12 07:29 UTCGHSA enrichment
  20. 2026-08-11 19:49 UTCEG score recompute
  21. 2026-08-11 19:49 UTCGHSA enrichment
  22. 2026-08-11 08:09 UTCEG score recompute
  23. 2026-08-11 08:09 UTCGHSA enrichment
  24. 2026-08-10 20:30 UTCEG score recompute
  25. 2026-08-10 19:20 UTCEG score recompute
  26. 2026-08-10 19:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71966?
CVE-2026-71966 is a high vulnerability published on August 10, 2026. CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server's API response. Attackers can inject malicious commands…
When was CVE-2026-71966 disclosed?
CVE-2026-71966 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71966 actively exploited?
CVE-2026-71966 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 20.0% of all scored CVEs.
What is the CVSS score of CVE-2026-71966?
CVE-2026-71966 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-71966?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71966, 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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