CVE-2026-59801

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-14. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

9Router through version 0.4.41 contains an unauthenticated access vulnerability that allows remote attackers to interact with provider management API endpoints by sending requests without any credentials due to missing authentication middleware in the Next.js API routes under src/app/api/providers/*. Attackers can enumerate, create, modify, or delete provider connections to expose partial credentials, OAuth tokens, and API keys, redirect AI traffic to attacker-controlled servers, or cause complete denial of service by deleting all provider connections.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
86%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Aug 29, 2026
Patch available. Sources: github.
github Patch Available

Unauthenticated CRUD on /api/providers and Full API Key Leak via /api/usage/stats · Advisory · decolua/9router · GitHub

https://github.com/decolua/9router/security/advisories/GHSA-vjc7-jrh9-9j86
generic

9Router 0.4.41 - Unauthenticated API Exposure via /api/providers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/9router-unauthenticated-api-exposure-via-api-providers

Vendor Advisories for CVE-2026-59801(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)
npm(1)
PackageVulnerable rangeFixed inDependents
9router———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 34× in last 7d / 224× 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 313 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2026/CVE-2026-59801.yaml
    First seen Jan 1, 2026

    9Router - Unauthenticated LLM Provider API Exposure

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59801?
CVE-2026-59801 is a critical vulnerability published on July 13, 2026. 9Router through version 0.4.41 contains an unauthenticated access vulnerability that allows remote attackers to interact with provider management API endpoints by sending requests without any credentials due to missing authentication middleware in the Next.js API routes under…
When was CVE-2026-59801 disclosed?
CVE-2026-59801 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59801 actively exploited?
CVE-2026-59801 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 14.1% of all scored CVEs.
What is the CVSS score of CVE-2026-59801?
CVE-2026-59801 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-59801?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59801, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-59801

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