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CVE

CVE-2026-43992

JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter
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CVE

CVE-2026-43992

JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter

JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, every MCP write tool (sendtokens, executecontract, instantiatecontract, uploadwasm, ibc_transfer, etc.) accepted 'mnemonic: string' as an explicit tool-call parameter. The BIP-39 seed was consequently embedded in the LLM tool-call JSON, exposing it to any transport, log, or telemetry surface in the path between the LLM provider and the MCP process. This vulnerability is fixed in 0.x.y-security-1.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43992.json, https://github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-j75q-8xvm-6c48, https://nvd.nist.gov/vuln/detail/CVE-2026-43992, https://github.com/Dragonmonk111/junoclaw/commit/339701e

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00225%
EPSS Percentile
0.13511%
Introduced Version
0
Fix Available
6b56230bd3cdf3cad2fdc6a3e2172131d59d1551

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