CVE-2026-56676

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (16th 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
7.4EG
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: 7.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity74% × 45%
The EG Score, 7.4 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
16th
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 10, 2026

Last Modified

July 13, 2026

Advisory Details (3)

Auto-updated Jul 10, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

Image prefetch DNS rebinding allows SSRF to internal services · Advisory · decolua/9router · GitHub

https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx
GitHub release Patch Available

feat: Combo Fusion + Capacity auto-switch, Kiro API-key, Claude auto-ping & 429 throttle version 0.5.2

Patch available: decolua/9router v0.5.2

https://github.com/decolua/9router/releases/tag/v0.5.2
GitHub commit Patch Available

commit c7d07448c58b (decolua/9router)

Patch available: decolua/9router v0.5.2 (contains commit c7d07448c58b)

https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82

Vendor Advisories for CVE-2026-56676(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 0.5.2: fixed in 0.5.2
—

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 138 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 38 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% · 16th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 16th 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% · 16th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  18. 2026-10-01 15:11 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  22. 2026-09-28 09:49 UTCEG score recompute
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 15th percentile
Show 75 more
  1. 2026-09-24 11:13 UTCEG score recompute
  2. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-09-23 05:46 UTCEG score recompute
  4. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  6. 2026-09-18 05:19 UTCEG score recompute
  7. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  10. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  11. 2026-09-13 23:41 UTCEG score recompute
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-09-12 16:03 UTCEG score recompute
  14. 2026-09-12 02:58 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  16. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  17. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-09-08 02:54 UTCEG score recompute
  19. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-09-06 13:57 UTCEG score recompute
  21. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  22. 2026-09-05 21:45 UTCEG score recompute
  23. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  24. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  25. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  26. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  27. 2026-08-30 19:30 UTCEG score recompute
  28. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  29. 2026-08-30 06:25 UTCEG score recompute
  30. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  31. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  32. 2026-08-27 00:50 UTCEG score recompute
  33. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  34. 2026-08-26 03:39 UTCEG score recompute
  35. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  36. 2026-08-25 00:04 UTCEG score recompute
  37. 2026-08-24 10:58 UTCEG score recompute
  38. 2026-08-22 06:28 UTCEG score recompute
  39. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-08-21 04:17 UTCEG score recompute
  41. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-08-20 01:33 UTCEG score recompute
  43. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  44. 2026-08-18 20:36 UTCEG score recompute
  45. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  46. 2026-08-18 02:52 UTCEG score recompute
  47. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-08-16 22:59 UTCEG score recompute
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-08-16 09:53 UTCEG score recompute
  51. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-08-15 07:44 UTCEG score recompute
  53. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-14 04:07 UTCEG score recompute
  55. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  56. 2026-08-13 01:57 UTCEG score recompute
  57. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-08-11 23:46 UTCEG score recompute
  59. 2026-08-11 10:41 UTCEG score recompute
  60. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  61. 2026-08-09 19:26 UTCEG score recompute
  62. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  63. 2026-08-08 17:16 UTCEG score recompute
  64. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  65. 2026-08-08 04:10 UTCEG score recompute
  66. 2026-08-07 02:00 UTCEG score recompute
  67. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  68. 2026-08-05 23:51 UTCEG score recompute
  69. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  70. 2026-08-04 21:25 UTCEG score recompute
  71. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  72. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  73. 2026-08-03 19:10 UTCEG score recompute
  74. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  75. 2026-08-02 03:54 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-56676?
CVE-2026-56676 is a high-severity vulnerability; its CVE record was published on July 10, 2026. 9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can…
When was the CVE record for CVE-2026-56676 published?
The CVE record for CVE-2026-56676 was published on July 10, 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 13, 2026; the record at its source may have been updated since.
Is CVE-2026-56676 actively exploited?
CVE-2026-56676 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56676?
CVE-2026-56676 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56676?
A fix for CVE-2026-56676 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56676 are linked in the Vendor Advisories panel on this page.

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