CVE-2026-56678

MEDIUMPre-NVD 6.46.4
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
6.4EG
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: 0.3%CVSS: 6.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to send the Kiro validation request to an attacker-controlled host while forwarding the submitted Kiro API key as an Authorization header. This issue is fixed in version 0.5.6.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity64% × 45%
The EG Score, 6.4 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
0.3%
EPSS %ILE
20th
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 15, 2026

Last Modified

July 16, 2026

Advisory Details (3)

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

feat: Ponytail code gen, Headroom proxy, CodeBuddy CN provider version 0.5.6

Patch available: decolua/9router v0.5.6

https://github.com/decolua/9router/releases/tag/v0.5.6
GitHub commit Patch Available

commit 126aa244c5b5 (decolua/9router)

Patch available: decolua/9router v0.5.6 (contains commit 126aa244c5b5)

https://github.com/decolua/9router/commit/126aa244c5b51b74ab8c7594e3418fcf4437bf6f
GitHub advisoryMentions a patch (unverified)

Kiro region injection allows authenticated SSRF with Authorization header forwarding · Advisory · decolua/9router · GitHub

https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m

Vendor Advisories for CVE-2026-56678(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
9router—
  • every version up to 0.5.6: fixed in 0.5.6
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 35× 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 127 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 27 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-12 15:54 UTCEG score recompute
  4. 2026-10-11 19:38 UTCEG score recompute
  5. 2026-10-11 16:53 UTCEG score recompute
  6. 2026-10-11 14:16 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-01 12:36 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-09-28 08:41 UTCEG score recompute
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 75 more
  1. 2026-09-24 08:46 UTCEG score recompute
  2. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-09-23 03:14 UTCEG score recompute
  4. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-09-18 04:43 UTCEG score recompute
  7. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  10. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-09-14 09:30 UTCEG score recompute
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-09-13 07:12 UTCEG score recompute
  14. 2026-09-11 21:44 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  18. 2026-09-08 00:42 UTCEG score recompute
  19. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  20. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-09-05 20:46 UTCEG score recompute
  22. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  24. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  25. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  26. 2026-08-31 06:04 UTCEG score recompute
  27. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  28. 2026-08-30 03:44 UTCEG score recompute
  29. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  30. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  31. 2026-08-27 21:27 UTCEG score recompute
  32. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  33. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  34. 2026-08-26 14:20 UTCEG score recompute
  35. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  36. 2026-08-25 11:51 UTCEG score recompute
  37. 2026-08-24 09:33 UTCEG score recompute
  38. 2026-08-23 07:14 UTCEG score recompute
  39. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  40. 2026-08-22 04:55 UTCEG score recompute
  41. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-08-21 02:36 UTCEG score recompute
  43. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-08-20 00:13 UTCEG score recompute
  45. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  46. 2026-08-18 19:58 UTCEG score recompute
  47. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  48. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  49. 2026-08-17 12:15 UTCEG score recompute
  50. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-08-16 09:55 UTCEG score recompute
  52. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  53. 2026-08-15 07:37 UTCEG score recompute
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-08-14 05:18 UTCEG score recompute
  56. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-08-13 02:59 UTCEG score recompute
  58. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-08-12 00:41 UTCEG score recompute
  60. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  61. 2026-08-09 20:03 UTCEG score recompute
  62. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  63. 2026-08-08 17:45 UTCEG score recompute
  64. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  65. 2026-08-07 15:26 UTCEG score recompute
  66. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  67. 2026-08-06 13:08 UTCEG score recompute
  68. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  69. 2026-08-05 10:49 UTCEG score recompute
  70. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  71. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  72. 2026-08-04 08:29 UTCEG score recompute
  73. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  74. 2026-08-02 03:44 UTCEG score recompute
  75. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-56678?
CVE-2026-56678 is a medium-severity vulnerability; its CVE record was published on July 15, 2026. 9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to…
When was the CVE record for CVE-2026-56678 published?
The CVE record for CVE-2026-56678 was published on July 15, 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-2026-56678 actively exploited?
CVE-2026-56678 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56678?
CVE-2026-56678 has a CVSS base score of 6.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56678?
A fix for CVE-2026-56678 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56678 are linked in the Vendor Advisories panel on this page.

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