CVE-2026-58122 (GCVE-0-2026-58122)

Vulnerability from cvelistv5 – Published: 2026-07-09 21:30 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing
Summary
Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to perform server-side request forgery against internal services including cloud metadata endpoints, overwrite LLM provider configuration and API keys with attacker-controlled values, or initiate OAuth device-code flows to obtain persistent access tokens stored in auth.json.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 19:12 UTC
CWE
  • CWE-348 - Use of Less Trusted Source
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6057 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nesquena hermes-webui Affected: 0 , < 0.51.307 (semver)
    cpe:2.3:a:get-hermes:hermes_web_ui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-06 00:00
Credits
fantasticsquirrel
Show details on NVD website
To clipboard 

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