CVE-2026-53871CWE-565

Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie

High · published June 17, 2026

CVSS v4.0
8.6
EPSS
0%
Percentile
29.6
In the wild
Unconfirmed
What it is

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the get_profile_cookie() function that accepts unauthenticated profile names from the hermes_profile cookie. An authenticated attacker can forge the hermes_profile cookie value to bypass profile-scoped authorization checks and access sessions, files, and resources across different profiles.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00365 · 29.6th percentile
Weakness
CWE-565 · Reliance on Cookies without Validation and Integrity Checking
Published
2026-06-17T17:58Z
EPSS history
Timeline
  • 17 JUN 17:58Z
    Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie
    cvelistv5