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CVE-2026-53870

Hermes Agent before 0.16.0 creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644), exposing conversation history and HMAC secrets to local users. Attackers with local filesystem access can read these files directly to obtain sensitive data including conversation history, tool payloads, prompts, and per-route HMAC secrets.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:68b863a1de5d2b9425cc17ef516496a374a1234c13fc22fa89f5f65c14a4fc50
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"H…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/hermes-agent","product":"hermes-agent","repo":"https://github.com/NousResearch/hermes-agent","vendor":"NousResearch","versions":[{"lessThan":"0.16.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"0.16.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"H…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-276","description":"Incorrect Default Permissions","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/NousResearch/hermes-agent/pull/30917"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/adp/0/references/0
{"name":"Researcher Pull Request","tags":["issue-tracking"],"url":"https://github.com/NousResearch/hermes-agent/pull/30917"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/references/1
{"name":"Maintainer Pull Request","tags":["issue-tracking"],"url":"https://github.com/NousResearch/hermes-agent/pull/31469"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/references/2
{"name":"Release Notes","tags":["release-notes"],"url":"https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-files"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:222e6021e53b5cd8fcb39798428d706ed360179beffe45fdf4640f326b5b0705 · sha256:c9fbd78f647a6ffd… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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