Hermes Agent 0.16.0 < 0.17.0 Credential Store Overwrite via File-Write Tool
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 0.3%
exploitation probability
0.3%top 74% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
NousResearch · hermes-agentReferences
https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59https://github.com/NousResearch/hermes-agent/pull/45821https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool