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
28%
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 19× in last 7d / 107× 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 160 total refreshes for this CVE.

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

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 71.5% 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

Explore →

Is Your Infrastructure Affected by CVE-2026-49353?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs