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CVE-2026-56693 nanocoai CVE debrief

CVE-2026-56693 is a medium-severity privilege escalation vulnerability in NanoClaw before version 2.1.17. The vulnerability allows confined agent containers to invoke the create_agent delivery-action handler, performing privileged central-database writes without host-side authorization checks. This enables the creation of arbitrary agent groups, container configurations, and destinations, effectively escalating beyond their intended confinement boundary. The vulnerability has a CVSS score of 6.8 and is considered medium severity. The CVE was published on June 23, 2026, at 16:17:05.887Z and last modified on June 23, 2026, at 17:58:20.160Z.

Vendor
nanocoai
Product
nanoclaw
CVSS
MEDIUM 6.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-23
Original CVE updated
2026-09-17
Advisory published
2026-06-23
Advisory updated
2026-09-17

Who should care

Users of NanoClaw versions prior to 2.1.17 should be aware of this vulnerability and take steps to mitigate it. This includes administrators and security teams responsible for ensuring the secure operation of NanoClaw in their environments. Given the medium severity and potential impact, prioritizing patching or mitigation efforts for this vulnerability is recommended.

Technical summary

The create_agent delivery-action handler in NanoClaw before 2.1.17 performs privileged central-database writes without proper host-side authorization checks. Confined agent containers can exploit this vulnerability to create arbitrary agent groups, container configurations, and destinations. This effectively allows them to escalate their privileges beyond their intended confinement boundary. The vulnerability is attributed to insufficient access controls in the create_agent handler.

Defensive priority

Apply the patch: Upgrade NanoClaw to version 2.1.17 or later to fix the vulnerability. Implement compensating controls: Until patching can be performed, monitor and restrict access to the create_agent delivery-action handler to prevent unauthorized use.

Recommended defensive actions

  • Apply the patch: Upgrade NanoClaw to version 2.1.17 or later to fix the vulnerability.
  • Implement compensating controls: Until patching can be performed, monitor and restrict access to the create_agent delivery-action handler to prevent unauthorized use.
  • Review and update configurations: Ensure that NanoClaw configurations and agent containers are properly secured and monitored.
  • Perform inventory checks: Verify that all NanoClaw instances are identified and accounted for in your environment.
  • Monitor for suspicious activity: Keep an eye out for unusual activity that could indicate exploitation attempts.

Evidence notes

The CVE-2026-56693 vulnerability is documented in the official CVE record and the NVD database. Additional details are provided by Vulncheck in their advisory on the NanoClaw privilege escalation vulnerability. These sources confirm the existence and details of the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-56693 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-56693

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-56693 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-56693

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.