{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82020", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-27T21:39:20.459Z", "datePublished": "2026-08-28T18:47:06.377Z", "dateUpdated": "2026-08-28T19:59:03.517Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-28T19:59:03.517Z"}, "title": "Hermes Agent 0.16.0 < 0.17.0 Credential Store Overwrite via File-Write Tool", "descriptions": [{"lang": "en", "value": "Hermes Agent 0.16.0 prior to 0.17.0 contains an improper path restriction vulnerability that allows attackers who can influence ingested message content to overwrite the credential store by bypassing sensitive-path guards that excluded the auth.json file. Attackers can craft malicious messages directing the agent's file-write tooling to overwrite the credential store without triggering any path-based protection, enabling credential tampering or unauthorized access."}], "tags": ["x_open-source"], "datePublic": "2026-06-13T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-552", "description": "Files or Directories Accessible to External Parties", "type": "CWE"}]}], "affected": [{"defaultStatus": "affected", "vendor": "NousResearch", "product": "hermes-agent", "packageURL": "pkg:github/NousResearch/hermes-agent", "repo": "https://github.com/NousResearch/hermes-agent", "versions": [{"status": "affected", "version": "0.16.0", "versionType": "semver", "lessThan": "0.17.0"}, {"status": "affected", "version": "2026.6.5", "versionType": "custom", "lessThan": "2026.6.19"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.6, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.8, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"}}], "references": [{"url": "https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19", "name": "Release Notes", "tags": ["release-notes"]}, {"url": "https://github.com/NousResearch/hermes-agent/pull/45821", "name": "Pull Request", "tags": ["issue-tracking"]}, {"url": "https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59", "name": "Patch Commit (1)", "tags": ["patch"]}, {"url": "https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5", "name": "Patch Commit (2)", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Zubair Ashraf (@zashraf1337), Helmet Security", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "vulncheck"}}}}

{}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.16.0,0.17.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.6.5,2026.6.19)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "hermes-agent", "source": "cna", "vendor": "NousResearch"}, "product": "hermes-agent", "vendor": "nousresearch"}], "created": "2026-08-28T21:45:03.383019+00:00", "updated": "2026-08-28T22:15:04.553979+00:00", "vendors": ["nousresearch", "nousresearch$PRODUCT$hermes-agent"]}