CVE-2026-43989

JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation

State: Published
Severity: 8.5 High
Published: May 12, 2026
Updated: May 14, 2026
Reserved: May 4, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.5 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 Improper Link Resolution Before File Access ('Link Following')
CWE-73 External Control of File Name or Path

Affected Products

Product	Versions
junoclawDragonmonk111	< v0.x.y-security-1Affected

References

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