What is CVE-2026-43991?

CVE-2026-43991 is a high-severity vulnerability in Dragonmonk111 Junoclaw, classified under OS Command Injection. CVSS score: 8.4/10. Published 2026-05-12.

How severe is CVE-2026-43991?

High severity. CVSS v3 base score is 8.4 out of 10.

RCE in Dragonmonk111 Junoclaw

CVE-2026-43991

JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, substring-based blocklist in plugin-shell's command-safety check could be bypassed by adversarial argument constructions, allowing unauthorized command ex…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dragonmonk111 Junoclaw — versions < v0.x.y-security-1

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-43991?: CVE-2026-43991 is a high-severity vulnerability in Dragonmonk111 Junoclaw, classified under OS Command Injection. CVSS score: 8.4/10. Published 2026-05-12.
How severe is CVE-2026-43991?: High severity. CVSS v3 base score is 8.4 out of 10.