CVE-2026-22677: medium-severity vulnerability in nesquena hermes-webui
Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6epss 0.4%
Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace field and subsequently use relative paths in the session file API to access any file readable by the WebUI process.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
nesquena · hermes-webuiRelated CVEs — nesquena hermes-webui
In the same product, most dangerous first.
CVE-2026-58123CRITICALHermes WebUI < 0.51.788 Unauthenticated RCE via Terminal APIEPSS 4.6%CVE-2026-49959HIGHHermes WebUI < 0.51.311 RCE via Git Configuration InjectionEPSS 0.9%CVE-2026-49955MEDIUMHermes WebUI < 0.51.270 Resource Exhaustion via passkey/optionsEPSS 0.6%CVE-2026-49973CRITICALHermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settingsEPSS 0.5%CVE-2026-55205MEDIUMHermes WebUI < 0.51.468 - Resource Exhaustion via Unauthenticated OAuth Flow EndpointEPSS 0.5%CVE-2026-6832HIGHNesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_idEPSS 0.5%
References
https://github.com/nesquena/hermes-webui/commit/f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3https://github.com/nesquena/hermes-webui/pull/2048https://github.com/nesquena/hermes-webui/releases/tag/v0.51.44https://www.vulncheck.com/advisories/hermes-webui-path-traversal-via-session-import-endpoint