CVE-2026-43989HIGH 8.5EPSS p4.2%

CVE-2026-43989CVE-2026-43989

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.

Scoring

CVSS 3.18.5 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
EPSS0.15% probability of exploitation · percentile 4.2% · 2026-06-19T12:03:05Z
Published2026-05-12
Last modified2026-05-13

Underlying weaknesses· 4

CWE-20CWE-22CWE-59CWE-73

References

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

4

TypeTargetConfidenceTier
WeaknessImproper Input Validationcwe-200%live
WeaknessImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal')cwe-220%live
WeaknessImproper Link Resolution Before File Access ('Link Following')cwe-590%live
WeaknessExternal Control of File Name or Pathcwe-730%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-43992
CVE
CVE-2026-43993
CVE
CVE-2026-43991
CVE
CVE-2026-43990
CVE
CVE-2026-23802
CVE
CVE-2025-12345
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.