CVE-2026-64866

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (38th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. From 0.9.1.3 until 1.0.0-rc.7, AdminResetPasskey in controller/passkey.go lacks the canManageTargetRole authorization check for DELETE /api/user/:id/reset_passkey, allowing a lower-privileged administrator to remove a passkey from a same-level or higher-privileged account, including a root account. This issue is fixed in version 1.0.0-rc.7.

CVSS v3
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
23
EG Risk 23/100CISA SSVC

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
Severity51% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 17, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Aug 17, 2026
Patch available. Sources: github, github_commit, github_pr, github_release.
github Patch Available

Admin can reset passkeys for same-level or higher-privileged users · Advisory · QuantumNous/new-api · GitHub

https://github.com/QuantumNous/new-api/security/advisories/GHSA-p845-629j-rcj6
github_release Patch Available

v1.0.0-rc.7

Patch available: QuantumNous/new-api v1.0.0-rc.7

https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.7
github_pr

perf: avoid eager formatting in debug log calls

Fix merged in QuantumNous/new-api PR #4929 on 2026-05-19 — awaiting tagged release

https://github.com/QuantumNous/new-api/pull/4929
github_commit

commit 0936e2504655 (QuantumNous/new-api)

Fix landed in QuantumNous/new-api commit 0936e2504655 — awaiting tagged release

https://github.com/QuantumNous/new-api/commit/0936e2504655a5cbf7bc3c388f6d3e2bb24916d3

Vendor Advisories for CVE-2026-64866(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/QuantumNous/new-api—
  • 0.9.1.3 up to 1.0.0-rc.7: fixed in 1.0.0-rc.7
  • every version up to 1.0.0-rc.7: fixed in 1.0.0-rc.7
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-03 17:48 UTCEG score recompute
  3. 2026-10-03 14:26 UTCEPSS rescore
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  5. 2026-10-02 09:55 UTCEG score recompute
  6. 2026-10-01 19:50 UTCEPSS rescore
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  8. 2026-09-30 15:03 UTCEPSS rescore
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  10. 2026-09-29 08:17 UTCEG score recompute
  11. 2026-09-28 13:51 UTCEPSS rescore
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  14. 2026-09-26 15:59 UTCEPSS rescore
  15. 2026-09-25 02:06 UTCEG score recompute
  16. 2026-09-23 20:39 UTCEG score recompute
  17. 2026-09-23 17:54 UTCEPSS rescore
  18. 2026-09-22 20:41 UTCEG score recompute
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  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-19 20:24 UTCEG score recompute
  22. 2026-09-18 20:21 UTCEG score recompute
  23. 2026-09-18 19:28 UTCEPSS rescore
  24. 2026-09-18 06:05 UTCEG score recompute
  25. 2026-09-17 06:07 UTCEG score recompute
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  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 06:07 UTCEG score recompute
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-15 06:09 UTCEG score recompute
  5. 2026-09-14 06:06 UTCEG score recompute
  6. 2026-09-13 06:09 UTCEG score recompute
  7. 2026-09-12 06:11 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 09:37 UTCEPSS rescore
  10. 2026-09-11 06:08 UTCEG score recompute
  11. 2026-09-09 06:04 UTCEG score recompute
  12. 2026-09-08 22:01 UTCEPSS rescore
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  14. 2026-09-07 16:01 UTCEPSS rescore
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  16. 2026-09-06 13:47 UTCEPSS rescore
  17. 2026-09-06 06:07 UTCEG score recompute
  18. 2026-09-05 15:31 UTCEPSS rescore
  19. 2026-09-05 06:07 UTCEG score recompute
  20. 2026-09-04 06:09 UTCEG score recompute
  21. 2026-09-04 05:07 UTCEPSS rescore
  22. 2026-09-03 06:08 UTCEG score recompute
  23. 2026-09-02 14:12 UTCEPSS rescore
  24. 2026-09-02 06:05 UTCEG score recompute
  25. 2026-09-01 13:54 UTCEPSS rescore
  26. 2026-09-01 06:01 UTCEG score recompute
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-08-31 05:35 UTCEG score recompute
  29. 2026-08-30 19:17 UTCEPSS rescore
  30. 2026-08-30 05:37 UTCEG score recompute
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 05:35 UTCEG score recompute
  33. 2026-08-28 21:42 UTCEPSS rescore
  34. 2026-08-27 22:04 UTCEG score recompute
  35. 2026-08-26 22:06 UTCEG score recompute
  36. 2026-08-26 14:47 UTCEPSS rescore
  37. 2026-08-25 22:08 UTCEG score recompute
  38. 2026-08-25 13:49 UTCEPSS rescore
  39. 2026-08-24 22:08 UTCEG score recompute
  40. 2026-08-23 22:10 UTCEG score recompute
  41. 2026-08-23 00:19 UTCEPSS rescore
  42. 2026-08-22 22:10 UTCEG score recompute
  43. 2026-08-21 23:49 UTCEPSS rescore
  44. 2026-08-21 22:13 UTCEG score recompute
  45. 2026-08-20 22:55 UTCEPSS rescore
  46. 2026-08-19 22:17 UTCEG score recompute
  47. 2026-08-19 17:04 UTCEPSS rescore
  48. 2026-08-18 22:19 UTCEG score recompute
  49. 2026-08-18 13:48 UTCEPSS rescore
  50. 2026-08-17 22:22 UTCEG score recompute
  51. 2026-08-17 22:09 UTCEG score recompute
  52. 2026-08-17 16:22 UTCEG score recompute
  53. 2026-08-17 16:22 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-64866?
CVE-2026-64866 is a medium vulnerability published on August 17, 2026. New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. From 0.9.1.3 until 1.0.0-rc.7, AdminResetPasskey in controller/passkey.go lacks the canManageTargetRole authorization check for DELETE /api/user/:id/reset_passkey, allowing a lower-privileged…
When was CVE-2026-64866 disclosed?
CVE-2026-64866 was first published on August 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64866 actively exploited?
CVE-2026-64866 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64866?
CVE-2026-64866 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64866?
A fix for CVE-2026-64866 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64866 are linked in the Vendor Advisories panel on this page.

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