What’s Vulnerable › Vulnerabilities

CVE-2026-43989: JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation

• Severity: high (CVSS 8.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-12 · updated 2026-10-26
• Weakness: CWE-20

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.

Affected products

• Dragonmonk111 junoclaw: before v0.x.y-security-1

References

• 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

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