CVE-2026-43989

JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation

CVSS 8.5 HIGHEPSS 0.1%CWE-20 CWE-22 CWE-59 CWE-73

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

12 may 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, the upload_wasm MCP tool accepted a filesystem path from the agent and uploaded whatever bytes the path resolved to, with no validation of location, symlink target, file size, or file format. This vulnerability is fixed in 0.x.y-security-1.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

Productos afectados

Dragonmonk111 · junoclaw

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Referencias

https://github.com/Dragonmonk111/junoclaw/commit/a7886cd https://github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1 https://github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-rw59-34hw-pmwp