CVE-2026-56694

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-06-23. the CNA's CVSS baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

NanoClaw before 2.1.0 contains a privilege escalation vulnerability in the channel-registration approval flow where handleChannelApprovalResponse fails to validate admin privileges over target agent groups. Scoped admins can submit forged or stale connect callback values to wire messaging channels into out-of-scope agent groups, exposing unauthorized groups to unapproved channels and enabling unauthorized observation or control of restricted agent group activity.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

June 23, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 23, 2026
Patch available. Sources: github_pr, github_commit.
generic

NanoClaw < 2.1.0 - Privilege Escalation via Forged Channel Approval Callback | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-forged-channel-approval-callback
github_commit Patch Available

commit 0eef8fafdd7c (nanocoai/nanoclaw)

Patch available: nanocoai/nanoclaw v2.1.0 (contains commit 0eef8fafdd7c)

https://github.com/nanocoai/nanoclaw/commit/0eef8fafdd7c475ab5fd8d37ea566a81e74cd834
github_pr Patch Available

[security] fix(permissions): scope channel approval targets

Patch available: nanocoai/nanoclaw v2.1.0 (PR #2566 merged 2026-05-22)

https://github.com/nanocoai/nanoclaw/pull/2566

Vendor Advisories for CVE-2026-56694(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 47× 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 167 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56694?
CVE-2026-56694 is a medium vulnerability published on June 23, 2026. NanoClaw before 2.1.0 contains a privilege escalation vulnerability in the channel-registration approval flow where handleChannelApprovalResponse fails to validate admin privileges over target agent groups. Scoped admins can submit forged or stale connect callback values to wire messaging channels…
When was CVE-2026-56694 disclosed?
CVE-2026-56694 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56694 actively exploited?
CVE-2026-56694 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-56694?
CVE-2026-56694 has a CVSS v4.0 base score of 5.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-56694?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56694, 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

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