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CVE-2026-43990

8.4 · HIGH

JunoClaw is an agentic AI platform built on Juno Network.

Published May 12, 2026CWE-77EPSS 0.22%

Overview

CVE-2026-43990 is a high-severity vulnerability. It was published on May 12, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, plugin-shell's run_command wrapped every agent-supplied command in 'sh -c' / 'cmd /C' and passed the full argument string to the shell's parser, allowing shell metacharacters in agent-supplied arguments to be interpreted as command syntax. This vulnerability is fixed in 0.x.y-security-1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Dragonmonk111/junoclaw/commit/2bc54f6GitHubgithub.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1GitHubgithub.com/Dragonmonk111/junoclaw/security/advisories/GHSA-gpvm-3chf-2649

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43990?

CVE-2026-43990 is a high-severity vulnerability. It was published on May 12, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-43990?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-43990?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-43990?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43990 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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