CVE-2026-53871

HIGH EPSS 28.4%
Published Jun 17, 20261w ago · Modified Jun 18, 20261w ago
8.6 CVSS 4.0
High
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Published Jun 17, 2026 1w ago
Last Modified Jun 18, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.6
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
28.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-565

References 5

  • github.com https://github.com/nesquena/hermes-webui/commit/9e96f5f6adf93b6d1e27ebddfb4d2833ca06ff3b
  • github.com https://github.com/nesquena/hermes-webui/pull/4023
  • github.com https://github.com/nesquena/hermes-webui/pull/4036
  • github.com https://github.com/nesquena/hermes-webui/releases/tag/v0.51.368
  • vulncheck.com https://www.vulncheck.com/advisories/hermes-webui-profile-scoped-authorization-bypass-via-forged-hermes-profile-cookie

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.