CVE-2026-49353

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH 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
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 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(high)
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
28.2%
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 9× in last 7d / 39× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:18 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 21:00 UTCGHSA enrichment
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-16 08:37 UTCGHSA enrichment
  13. 2026-07-15 20:14 UTCGHSA enrichment
  14. 2026-07-15 07:51 UTCGHSA enrichment
  15. 2026-07-14 19:28 UTCGHSA enrichment
  16. 2026-07-14 07:05 UTCGHSA enrichment
  17. 2026-07-13 18:38 UTCGHSA enrichment
  18. 2026-07-13 06:14 UTCGHSA enrichment
  19. 2026-07-12 17:50 UTCGHSA enrichment
  20. 2026-07-12 05:26 UTCGHSA enrichment
  21. 2026-07-11 17:03 UTCGHSA enrichment
  22. 2026-07-11 04:39 UTCGHSA enrichment
  23. 2026-07-10 16:15 UTCGHSA enrichment
  24. 2026-07-10 03:42 UTCGHSA enrichment
  25. 2026-07-09 15:13 UTCGHSA enrichment
Show 14 more
  1. 2026-07-09 02:49 UTCGHSA enrichment
  2. 2026-07-08 14:26 UTCGHSA enrichment
  3. 2026-07-08 02:03 UTCGHSA enrichment
  4. 2026-07-07 13:40 UTCGHSA enrichment
  5. 2026-07-07 01:17 UTCGHSA enrichment
  6. 2026-07-06 12:54 UTCGHSA enrichment
  7. 2026-07-06 00:29 UTCGHSA enrichment
  8. 2026-07-05 12:06 UTCGHSA enrichment
  9. 2026-07-04 23:43 UTCGHSA enrichment
  10. 2026-07-04 11:20 UTCGHSA enrichment
  11. 2026-07-03 22:57 UTCGHSA enrichment
  12. 2026-07-03 10:32 UTCGHSA enrichment
  13. 2026-07-02 22:07 UTCEG score recompute
  14. 2026-07-02 22:07 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 28.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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