JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation

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Summary

CVECVE-2026-43989
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-12 17:16:20 UTC
Updated2026-05-12 17:16:20 UTC
DescriptionJunoClaw 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.

Risk And Classification

Primary CVSS: v3.1 8.5 HIGH from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.5HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
3.1CNADECLARED8.5HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Dragonmonk111 Junoclaw affected < v0.x.y-security-1 Not specified

References

ReferenceSourceLinkTags
github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1 [email protected] github.com
github.com/Dragonmonk111/junoclaw/commit/a7886cd [email protected] github.com
github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-rw59-34hw-pmwp [email protected] github.com
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