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
Trending — 3 sources updated this week
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
7%
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 18× in last 7d / 67× 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. 2026-07-30 16:28 UTCEPSS rescore
  2. 2026-07-30 02:37 UTCEG score recompute
  3. 2026-07-30 02:37 UTCGHSA enrichment
  4. 2026-07-30 01:30 UTCEPSS rescore
  5. 2026-07-30 01:30 UTCEPSS rescore
  6. 2026-07-29 01:17 UTCEG score recompute
  7. 2026-07-29 01:17 UTCGHSA enrichment
  8. 2026-07-28 15:37 UTCEPSS rescore
  9. 2026-07-27 17:48 UTCEG score recompute
  10. 2026-07-27 17:48 UTCGHSA enrichment
  11. 2026-07-27 14:14 UTCEPSS rescore
  12. 2026-07-26 15:54 UTCEG score recompute
  13. 2026-07-26 15:54 UTCGHSA enrichment
  14. 2026-07-26 14:54 UTCEPSS rescore
  15. 2026-07-26 14:54 UTCEPSS rescore
  16. 2026-07-25 14:18 UTCEPSS rescore
  17. 2026-07-25 14:18 UTCEPSS rescore
  18. 2026-07-24 14:18 UTCEPSS rescore
  19. 2026-07-23 14:18 UTCEPSS rescore
  20. 2026-07-23 03:20 UTCEG score recompute
  21. 2026-07-22 14:08 UTCEPSS rescore
  22. 2026-07-21 15:25 UTCEPSS rescore
  23. 2026-07-20 17:08 UTCEPSS rescore
  24. 2026-07-19 14:31 UTCEPSS rescore
  25. 2026-07-19 14:31 UTCEPSS rescore
Show 59 more
  1. 2026-07-19 02:29 UTCEPSS rescore
  2. 2026-07-18 10:04 UTCEPSS rescore
  3. 2026-07-16 18:51 UTCGHSA enrichment
  4. 2026-07-16 17:03 UTCEPSS rescore
  5. 2026-07-15 18:50 UTCGHSA enrichment
  6. 2026-07-15 16:57 UTCEPSS rescore
  7. 2026-07-15 16:57 UTCEPSS rescore
  8. 2026-07-15 02:00 UTCEPSS rescore
  9. 2026-07-15 02:00 UTCEPSS rescore
  10. 2026-07-14 18:39 UTCGHSA enrichment
  11. 2026-07-13 22:31 UTCEPSS rescore
  12. 2026-07-13 18:38 UTCGHSA enrichment
  13. 2026-07-13 06:13 UTCEPSS rescore
  14. 2026-07-13 06:13 UTCEPSS rescore
  15. 2026-07-12 18:38 UTCGHSA enrichment
  16. 2026-07-12 05:46 UTCEPSS rescore
  17. 2026-07-11 18:30 UTCGHSA enrichment
  18. 2026-07-11 08:27 UTCEPSS rescore
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-10 18:30 UTCGHSA enrichment
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-09 18:09 UTCGHSA enrichment
  24. 2026-07-08 18:05 UTCGHSA enrichment
  25. 2026-07-08 15:16 UTCEPSS rescore
  26. 2026-07-08 15:16 UTCEPSS rescore
  27. 2026-07-07 18:04 UTCGHSA enrichment
  28. 2026-07-07 13:46 UTCEPSS rescore
  29. 2026-07-07 13:46 UTCEPSS rescore
  30. 2026-07-06 16:27 UTCEPSS rescore
  31. 2026-07-06 16:27 UTCEPSS rescore
  32. 2026-07-06 16:02 UTCGHSA enrichment
  33. 2026-07-05 15:59 UTCGHSA enrichment
  34. 2026-07-05 02:31 UTCEPSS rescore
  35. 2026-07-05 02:30 UTCEPSS rescore
  36. 2026-07-04 15:59 UTCGHSA enrichment
  37. 2026-07-04 06:31 UTCEPSS rescore
  38. 2026-07-04 06:31 UTCEPSS rescore
  39. 2026-07-03 15:58 UTCGHSA enrichment
  40. 2026-07-02 15:57 UTCGHSA enrichment
  41. 2026-07-01 15:56 UTCGHSA enrichment
  42. 2026-07-01 15:07 UTCEPSS rescore
  43. 2026-06-30 23:22 UTCEPSS rescore
  44. 2026-06-30 15:55 UTCGHSA enrichment
  45. 2026-06-29 15:54 UTCGHSA enrichment
  46. 2026-06-29 14:06 UTCEPSS rescore
  47. 2026-06-28 15:54 UTCGHSA enrichment
  48. 2026-06-28 14:07 UTCEPSS rescore
  49. 2026-06-28 04:56 UTCEPSS rescore
  50. 2026-06-28 04:56 UTCEPSS rescore
  51. 2026-06-27 15:54 UTCGHSA enrichment
  52. 2026-06-27 03:08 UTCEPSS rescore
  53. 2026-06-26 15:53 UTCGHSA enrichment
  54. 2026-06-25 15:54 UTCGHSA enrichment
  55. 2026-06-25 13:49 UTCEPSS rescore
  56. 2026-06-24 15:46 UTCGHSA enrichment
  57. 2026-06-24 14:05 UTCEPSS rescore
  58. 2026-06-23 15:46 UTCEG score recompute
  59. 2026-06-23 15:45 UTCMITRE cvelistV5first tracked

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 93.2% 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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