CVE-2026-49973
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.4 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Vulnerability Description
Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the _set_password parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable network can send a POST request to the settings endpoint during the first-run setup window to persist an arbitrary password hash, obtain a valid session cookie, and lock out the legitimate operator from their own instance.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-306
Source
NVD
Vendor
nesquena
Product
hermes-webui
External References
- https://github.com/nesquena/hermes-webui/commit/1126e541325d401538f6a272a9c024c37d47ae08
- https://github.com/nesquena/hermes-webui/pull/3964
- https://github.com/nesquena/hermes-webui/pull/3973
- https://github.com/nesquena/hermes-webui/releases/tag/v0.51.358
- https://www.vulncheck.com/advisories/hermes-webui-unauthenticated-password-takeover-via-api-settings
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