CVE-2026-43989

HIGH 8.5

JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation

CVSS Score

8.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-20 CWE-22 CWE-59 CWE-73
Vendor	dragonmonk111
Product	junoclaw
Published	May 12, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

Affected Versions

Dragonmonk111 / junoclaw

< v0.x.y-security-1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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