CVE-2026-58123
CRITICALCVSS v3.1: 9.8
Source data as of:
At a glance
- Severity
- CRITICAL
- CVSS
- 9.8 v3.1 · NVD
- EPSS
- EPSS not provided by FIRST.org for this CVE
- CISA KEV
- No
- Type
- Missing Authentication · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Published
- 2026-07-09 · Modified: 2026-07-09
- References
- Jump to references (4)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
Hermes WebUI before 0.51.788 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary shell commands by accessing the embedded terminal API endpoints without credentials. Attackers can create a session, attach a PTY shell, and write arbitrary commands through the terminal input endpoint to achieve full command execution as the server process user via four sequential unauthenticated HTTP requests.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Patch https://github.com/nesquena/hermes-webui/commit/d257e5f36cfa9328600c8bde6f0de09a6ad9b6f4
- Reference https://github.com/nesquena/hermes-webui/pull/5268
- Patch https://github.com/nesquena/hermes-webui/releases/tag/v0.51.788
- Vendor advisory https://www.vulncheck.com/advisories/hermes-webui-unauthenticated-rce-via-terminal-api