{"id":"CVE-2026-43992","state":"PUBLISHED","title":"JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter","description":"JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, every MCP write tool (send_tokens, execute_contract, instantiate_contract, upload_wasm, 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.","publishedAt":"2026-05-12T16:25:30.868Z","updatedAt":"2026-05-13T14:38:16.906Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["Dragonmonk111 junoclaw"],"affected":[{"vendor":"Dragonmonk111","product":"junoclaw","versions":[{"version":"< v0.x.y-security-1","status":"affected"}]}],"references":["https://github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-j75q-8xvm-6c48","https://github.com/Dragonmonk111/junoclaw/commit/339701e","https://github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1"],"weaknesses":["CWE-200","CWE-312","CWE-522","CWE-532"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43992.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43992","state":"PUBLISHED","datePublished":"2026-05-12T16:25:30.868Z","dateUpdated":"2026-05-13T14:38:16.906Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-04T20:24:31.917Z"},"containers":{"cna":{"title":"JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter","descriptions":[{"lang":"en","value":"JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, every MCP write tool (send_tokens, execute_contract, instantiate_contract, upload_wasm, 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."}],"affected":[{"vendor":"Dragonmonk111","product":"junoclaw","versions":[{"version":"< v0.x.y-security-1","status":"affected"}]}],"references":[{"url":"https://github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-j75q-8xvm-6c48","name":"https://github.com/Dragonmonk111/junoclaw/security/advisories/GHSA-j75q-8xvm-6c48","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Dragonmonk111/junoclaw/commit/339701e","name":"https://github.com/Dragonmonk111/junoclaw/commit/339701e","tags":["x_refsource_MISC"]},{"url":"https://github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1","name":"https://github.com/Dragonmonk111/junoclaw/releases/tag/v0.x.y-security-1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-312","lang":"en","description":"CWE-312: Cleartext Storage of Sensitive Information","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-522","lang":"en","description":"CWE-522: Insufficiently Protected Credentials","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-532","lang":"en","description":"CWE-532: Insertion of Sensitive Information into Log File","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-12T16:25:30.868Z"},"source":{"advisory":"GHSA-j75q-8xvm-6c48","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T14:34:03.835477Z","id":"CVE-2026-43992","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-13T14:38:16.906Z"}}]}}}