CVE-2026-49353

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-02. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/*, /api/tunnel/*, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP child process stdin paths.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 16, 2026

Advisory Details (4)

Auto-updated Jul 15, 2026
Patch available. Sources: github_commit, github_release, github.
github_release Patch Available

chore: switch tunnel to new domain version 0.4.46

Patch available: decolua/9router v0.4.46

https://github.com/decolua/9router/releases/tag/v0.4.46
github_commit Patch Available

commit bb8680858206 (decolua/9router)

Patch available: decolua/9router v0.4.46 (contains commit bb8680858206)

https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5
github_commit Patch Available

commit 5e1c1261368e (decolua/9router)

Patch available: decolua/9router v0.4.55 (contains commit 5e1c1261368e)

https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db
github Patch Available

Incomplete Fix: Local-Only Access Gate Bypass in 9router via Host Header SpoofING · Advisory · decolua/9router · GitHub

https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf

Vendor Advisories for CVE-2026-49353(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npm9router—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

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 12× in last 7d / 55× 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 192 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-49353?
CVE-2026-49353 is a high vulnerability published on July 2, 2026. 9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/, /api/tunnel/, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach…
When was CVE-2026-49353 disclosed?
CVE-2026-49353 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49353 actively exploited?
CVE-2026-49353 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-49353?
CVE-2026-49353 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-49353?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49353, 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-2026-49353

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