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CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-49957

Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py

Description

Hermes WebUI before version 0.51.296 contains a workspace boundary bypass vulnerability that allows authenticated attackers to circumvent blocked-root path checks by exploiting an early return in the SSH/remote terminal profile workspace resolution logic within _remote_terminal_workspace_candidate(). Attackers can configure a remote terminal working directory to a system directory such as /etc, causing the workspace resolution path to accept it as a trusted local workspace root before the _is_blocked_workspace_path() guard executes, enabling read access to local system files through workspace file-read helpers.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nesquena hermes-webui

Default version status: affected

  • 0 to < 0.51.296affected
pkg:github/nesquena/hermes-webui

References