CVE-2026-5842

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 80% of all CVEs by exploit prediction. 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, nvd
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

A security vulnerability has been detected in decolua 9router up to 0.3.47. The impacted element is an unknown function of the file /api of the component Administrative API Endpoint. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.75 is sufficient to resolve this issue. It is suggested to upgrade the affected component.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
23.2%
KEV
Not listed

Published

April 9, 2026

Last Modified

April 29, 2026

Advisory Details (5)

Auto-updated Jun 15, 2026
Patch available. Sources: github_release.
generic

GitHub - deepcat1337/Free_Api_Exploit: A critical broken access control vulnerability exists in 9Router due to improper enforcement of authentication boundaries. While access control is applied to `/dashboard` routes via middleware, multiple sensitive `/api/*` endpoints lack server-side authentication and authorization checks. · GitHub

https://github.com/deepcat1337/Free_Api_Exploit/tree/main
github_release Patch Available

fix: Lossless passthrough for Claude CLI, Codex & correct thought signatures version 0.3.75

Patch available: decolua/9router v0.3.75

https://github.com/decolua/9router/releases/tag/v0.3.75
generic

Missing Authentication on Administrative API Endpoints Leads to Full System Compromise in 9Router · Issue #431 · decolua/9router · GitHub

https://github.com/decolua/9router/issues/431#issuecomment-4140163867
generic

Missing Authentication on Administrative API Endpoints Leads to Full System Compromise in 9Router · Issue #431 · decolua/9router · GitHub

https://github.com/decolua/9router/issues/431
generic

GitHub - decolua/9router: Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits. · GitHub

https://github.com/decolua/9router/

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
9router—0.3.75—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 46× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
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  8. 2026-07-07 13:46 UTCEPSS rescore
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  10. 2026-07-06 16:27 UTCEPSS rescore
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  12. 2026-07-06 02:23 UTCEPSS rescore
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  16. 2026-07-04 06:31 UTCEPSS rescore
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  18. 2026-07-01 15:07 UTCEPSS rescore
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-25 13:50 UTCEPSS rescore
  25. 2026-06-24 14:05 UTCEPSS rescore
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  1. 2026-06-23 21:33 UTCEPSS rescore
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  3. 2026-06-22 14:25 UTCEPSS rescore
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  5. 2026-06-21 14:56 UTCEPSS rescore
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  7. 2026-06-21 01:59 UTCEPSS rescore
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  9. 2026-06-19 19:26 UTCEPSS rescore
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  11. 2026-06-18 17:52 UTCEPSS rescore
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  15. 2026-06-15 17:49 UTCEPSS rescore
  16. 2026-06-15 17:49 UTCEPSS rescore
  17. 2026-06-15 05:18 UTCEG score recompute
  18. 2026-06-14 23:18 UTCEPSS rescore
  19. 2026-06-13 23:00 UTCEPSS rescore
  20. 2026-06-12 23:12 UTCEPSS rescore
  21. 2026-06-12 23:12 UTCEPSS rescore
  22. 2026-06-11 20:35 UTCEG score recompute
  23. 2026-06-11 14:00 UTCEPSS rescore
  24. 2026-06-10 22:19 UTCEPSS rescore
  25. 2026-06-10 15:34 UTCEG score recompute
  26. 2026-06-10 13:22 UTCEPSS rescore
  27. 2026-06-10 02:21 UTCEG score recompute
  28. 2026-06-09 13:09 UTCEG score recompute
  29. 2026-06-08 14:17 UTCEPSS rescore
  30. 2026-06-08 11:18 UTCEG score recompute
  31. 2026-06-07 21:55 UTCEG score recompute
  32. 2026-06-07 15:25 UTCEPSS rescore
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  34. 2026-06-06 13:47 UTCEPSS rescore
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  36. 2026-06-05 06:10 UTCEPSS rescore
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  38. 2026-06-04 13:12 UTCEPSS rescore
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  40. 2026-06-02 20:13 UTCEPSS rescore
  41. 2026-06-01 13:52 UTCEPSS rescore
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  43. 2026-05-31 22:30 UTCEPSS rescore
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  45. 2026-05-31 00:16 UTCEPSS rescore
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  47. 2026-05-29 13:44 UTCEPSS rescore
  48. 2026-05-29 13:44 UTCEPSS rescore
  49. 2026-05-28 13:44 UTCEPSS rescore
  50. 2026-05-28 13:44 UTCEPSS rescore
  51. 2026-05-27 13:40 UTCEPSS rescore
  52. 2026-05-27 13:40 UTCEPSS rescore
  53. 2026-05-26 13:44 UTCEPSS rescore
  54. 2026-05-26 07:18 UTCEPSS rescore
  55. 2026-05-23 00:08 UTCEG score recompute
  56. 2026-05-21 22:43 UTCEPSS rescore
  57. 2026-05-20 22:38 UTCEPSS rescore
  58. 2026-05-20 18:09 UTCEG score recompute
  59. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-5842?
CVE-2026-5842 is a high vulnerability published on April 9, 2026. A security vulnerability has been detected in decolua 9router up to 0.3.47. The impacted element is an unknown function of the file /api of the component Administrative API Endpoint. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has…
When was CVE-2026-5842 disclosed?
CVE-2026-5842 was first published in the National Vulnerability Database on April 9, 2026, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5842 actively exploited?
CVE-2026-5842 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-5842?
CVE-2026-5842 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-5842?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5842, 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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