CVE-2026-43989CWE-20CWE-22CWE-59CWE-73
JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation
High · published May 12, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 8.5 · HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
- CVSS v4.0
- Not supplied
- EPSS
- 0.00187 · 7.9th percentile
- 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
- Published
- 2026-05-12T16:21Z
EPSS history
Timeline