CVE-2026-56694

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-06-23. a secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 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(high)
EPSS
6.8%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 23, 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 22× in last 7d / 43× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:02 UTCEG score recompute
  4. 2026-07-06 16:02 UTCGHSA enrichment
  5. 2026-07-05 15:59 UTCEG score recompute
  6. 2026-07-05 15:59 UTCGHSA enrichment
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 15:59 UTCEG score recompute
  10. 2026-07-04 15:59 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-03 15:58 UTCEG score recompute
  14. 2026-07-03 15:58 UTCGHSA enrichment
  15. 2026-07-02 15:57 UTCEG score recompute
  16. 2026-07-02 15:57 UTCGHSA enrichment
  17. 2026-07-01 15:57 UTCEG score recompute
  18. 2026-07-01 15:56 UTCGHSA enrichment
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 15:56 UTCEG score recompute
  22. 2026-06-30 15:55 UTCGHSA enrichment
  23. 2026-06-29 15:54 UTCEG score recompute
  24. 2026-06-29 15:54 UTCGHSA enrichment
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 18 more
  1. 2026-06-28 15:54 UTCEG score recompute
  2. 2026-06-28 15:54 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 15:54 UTCEG score recompute
  7. 2026-06-27 15:54 UTCGHSA enrichment
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 15:53 UTCEG score recompute
  10. 2026-06-26 15:53 UTCGHSA enrichment
  11. 2026-06-25 15:54 UTCEG score recompute
  12. 2026-06-25 15:54 UTCGHSA enrichment
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-24 15:46 UTCEG score recompute
  15. 2026-06-24 15:46 UTCGHSA enrichment
  16. 2026-06-24 14:05 UTCEPSS rescore
  17. 2026-06-23 15:46 UTCEG score recompute
  18. 2026-06-23 15:45 UTCMITRE cvelistV5first tracked

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. 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 6.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56694?
CVE-2026-56694 has a CVSS v3 base score of 5.4 (NVD).
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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