CVE-2026-64859

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (48th 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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.1Exploit: 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. Prior to 1.0.0-rc.7, the admin user list and user lookup APIs, including GET /api/user/, return User.AccessToken as access_token because User model objects are serialized after queries use Omit("password"), allowing an authenticated administrator to obtain the root user's bearer token and access root-only system configuration APIs. This issue is fixed in version 1.0.0-rc.7.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100CISA 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
Severity91% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 Sep 16, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available

User List API Leaks Root User Access Token Leading to Privilege Escalation · Advisory · QuantumNous/new-api · GitHub

https://github.com/QuantumNous/new-api/security/advisories/GHSA-6x2c-phff-wx57
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-2026-64859(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—
  • 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 14× in last 7d / 48× 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. 2026-10-05 02:00 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 17:48 UTCEG score recompute
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 19:56 UTCEG score recompute
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  7. 2026-10-02 01:35 UTCEG score recompute
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 20:52 UTCEG score recompute
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-30 10:01 UTCEG score recompute
  12. 2026-09-28 21:59 UTCEG score recompute
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  14. 2026-09-28 13:51 UTCEPSS rescore
  15. 2026-09-27 16:41 UTCEG score recompute
  16. 2026-09-27 08:17 UTCEG score recompute
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-25 02:06 UTCEG score recompute
  19. 2026-09-23 20:27 UTCEG score recompute
  20. 2026-09-23 17:54 UTCEPSS rescore
  21. 2026-09-22 20:41 UTCEG score recompute
  22. 2026-09-21 22:48 UTCEG score recompute
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  24. 2026-09-20 20:16 UTCEPSS rescore
  25. 2026-09-19 19:31 UTCEG score recompute
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  1. 2026-09-18 20:23 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:55 UTCEG score recompute
  4. 2026-09-16 15:16 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:47 UTCEG score recompute
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-15 04:24 UTCEG score recompute
  9. 2026-09-13 17:25 UTCEG score recompute
  10. 2026-09-12 16:26 UTCEG score recompute
  11. 2026-09-11 15:14 UTCEG score recompute
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 11:04 UTCEG score recompute
  14. 2026-09-11 09:37 UTCEPSS rescore
  15. 2026-09-10 09:42 UTCEG score recompute
  16. 2026-09-09 03:41 UTCEG score recompute
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 16:11 UTCEG score recompute
  19. 2026-09-07 16:01 UTCEPSS rescore
  20. 2026-09-06 13:53 UTCEG score recompute
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-05 17:00 UTCEG score recompute
  23. 2026-09-05 15:31 UTCEPSS rescore
  24. 2026-09-04 14:12 UTCEG score recompute
  25. 2026-09-04 05:48 UTCEG score recompute
  26. 2026-09-04 05:07 UTCEPSS rescore
  27. 2026-09-02 17:11 UTCEG score recompute
  28. 2026-09-02 14:12 UTCEPSS rescore
  29. 2026-09-01 14:22 UTCEG score recompute
  30. 2026-09-01 13:54 UTCEPSS rescore
  31. 2026-09-01 05:18 UTCEG score recompute
  32. 2026-09-01 04:40 UTCEPSS rescore
  33. 2026-08-30 20:29 UTCEG score recompute
  34. 2026-08-30 19:17 UTCEPSS rescore
  35. 2026-08-30 03:50 UTCEG score recompute
  36. 2026-08-30 01:22 UTCEPSS rescore
  37. 2026-08-29 05:38 UTCEG score recompute
  38. 2026-08-28 21:42 UTCEPSS rescore
  39. 2026-08-27 15:44 UTCEG score recompute
  40. 2026-08-26 18:40 UTCEG score recompute
  41. 2026-08-26 14:47 UTCEPSS rescore
  42. 2026-08-25 17:06 UTCEG score recompute
  43. 2026-08-25 13:49 UTCEPSS rescore
  44. 2026-08-24 15:41 UTCEG score recompute
  45. 2026-08-24 11:32 UTCEG score recompute
  46. 2026-08-23 02:02 UTCEG score recompute
  47. 2026-08-23 00:19 UTCEPSS rescore
  48. 2026-08-22 00:56 UTCEG score recompute
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-20 23:55 UTCEG score recompute
  51. 2026-08-20 22:55 UTCEPSS rescore
  52. 2026-08-19 18:45 UTCEG score recompute
  53. 2026-08-19 17:04 UTCEPSS rescore
  54. 2026-08-18 16:58 UTCEG score recompute
  55. 2026-08-18 13:48 UTCEPSS rescore
  56. 2026-08-17 19:27 UTCEG score recompute
  57. 2026-08-17 19:12 UTCEG score recompute
  58. 2026-08-17 16:17 UTCEG score recompute
  59. 2026-08-17 16:17 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-64859?
CVE-2026-64859 is a critical vulnerability published on August 17, 2026. New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.7, the admin user list and user lookup APIs, including GET /api/user/, return User.AccessToken as access_token because User model objects are serialized after queries use…
When was CVE-2026-64859 disclosed?
CVE-2026-64859 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-2026-64859 actively exploited?
CVE-2026-64859 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64859?
CVE-2026-64859 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64859?
A fix for CVE-2026-64859 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64859 are linked in the Vendor Advisories panel on this page.

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