CVE-2026-49353

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Elevated
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

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
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100

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 (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

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 advisoryMentions a patch (unverified)

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
9router—
  • every version through 0.4.55: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 34× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 214 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 114 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:43 UTCEG score recompute
  2. 2026-10-11 16:57 UTCEG score recompute
  3. 2026-10-11 14:21 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  7. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  13. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  14. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  15. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  16. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  17. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  18. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  19. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  20. 2026-09-23 06:38 UTCEG score recompute
  21. 2026-09-23 06:38 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  24. 2026-09-18 06:14 UTCEG score recompute
  25. 2026-09-18 06:14 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
Show 75 more
  1. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-09-14 00:15 UTCEG score recompute
  4. 2026-09-14 00:15 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  6. 2026-09-13 08:59 UTCEG score recompute
  7. 2026-09-13 08:59 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-09-12 14:15 UTCEG score recompute
  9. 2026-09-12 14:15 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-09-06 14:19 UTCEG score recompute
  15. 2026-09-06 14:19 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  16. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-09-05 23:51 UTCEG score recompute
  18. 2026-09-05 23:51 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-08-30 23:45 UTCEG score recompute
  24. 2026-08-30 23:45 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  26. 2026-08-30 11:22 UTCEG score recompute
  27. 2026-08-30 11:22 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  29. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  30. 2026-08-27 22:14 UTCEG score recompute
  31. 2026-08-27 22:14 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  33. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  34. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  35. 2026-08-25 13:41 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-08-24 22:38 UTCEG score recompute
  37. 2026-08-24 22:38 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-08-24 10:15 UTCEG score recompute
  39. 2026-08-24 10:15 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  40. 2026-08-23 20:10 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-08-23 07:47 UTCEG score recompute
  42. 2026-08-23 07:47 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-22 19:24 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  45. 2026-08-22 06:08 UTCEG score recompute
  46. 2026-08-22 06:08 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  48. 2026-08-21 17:15 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-08-21 04:47 UTCEG score recompute
  50. 2026-08-21 04:47 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  52. 2026-08-20 16:24 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-08-20 04:01 UTCEG score recompute
  54. 2026-08-20 04:01 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-19 09:18 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-08-18 20:54 UTCEG score recompute
  58. 2026-08-18 20:54 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  60. 2026-08-18 04:29 UTCEG score recompute
  61. 2026-08-18 04:29 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  63. 2026-08-17 12:56 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-08-17 00:34 UTCEG score recompute
  65. 2026-08-17 00:34 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  67. 2026-08-16 12:10 UTCEG score recompute
  68. 2026-08-16 12:10 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  70. 2026-08-15 23:48 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-08-15 11:25 UTCEG score recompute
  72. 2026-08-15 11:25 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  74. 2026-08-14 23:02 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-08-14 10:39 UTCGHSA enrichmentGHSA-6g2f-w7g3-77vf · GitHub severity HIGH · GitHub CVSS 7.5

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-49353?
CVE-2026-49353 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-49353 published?
The CVE record for CVE-2026-49353 was published on July 2, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 16, 2026; the record at its source may have been updated since.
Is CVE-2026-49353 actively exploited?
CVE-2026-49353 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49353?
CVE-2026-49353 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49353?
A fix for CVE-2026-49353 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49353 are linked in the Vendor Advisories panel on this page.

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