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10 vulnerabilities by nesquena

CVE-2026-49959 (GCVE-0-2026-49959)

Vulnerability from cvelistv5 – Published: 2026-06-09 16:46 – Updated: 2026-06-09 16:46 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.311 RCE via Git Configuration Injection
Summary
Hermes WebUI before version 0.51.311 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by placing malicious executable Git configuration in a workspace repository's .git/config file. Attackers can exploit Git subprocess invocations in api/workspace_git.py through vectors such as core.fsmonitor during git status, protocol.ext.allow with ext:: remotes during git fetch, credential.helper, core.askPass, core.gitProxy, or inherited environment variables including GIT_SSH_COMMAND to achieve arbitrary command execution on the host running the application.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.311 (semver)
Create a notification for this product.
Date Public
2026-06-07 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-49958 (GCVE-0-2026-49958)

Vulnerability from cvelistv5 – Published: 2026-06-09 16:35 – Updated: 2026-06-09 18:26 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard
Summary
Hermes WebUI before version 0.51.303 contains a time-of-check time-of-use (TOCTOU) race condition vulnerability in the git_discard function within api/workspace_git.py that allows attackers to delete files outside the configured workspace boundary by replacing a validated path component with a symlink after validation but before deletion. Attackers can substitute a workspace-controlled path component with a symlink pointing to an external directory between the safe_resolve_ws() validation step and the subsequent Path.unlink() or shutil.rmtree() deletion call, causing the delete operation to follow the symlink and remove arbitrary files outside the workspace.
Severity
4.3 (Medium)
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
5 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.303 (semver)
Create a notification for this product.
Date Public
2026-06-06 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-49957 (GCVE-0-2026-49957)

Vulnerability from cvelistv5 – Published: 2026-06-09 16:25 – Updated: 2026-06-09 20:22 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.269 Workspace Boundary Bypass via api/workspace.py
Summary
Hermes WebUI before version 0.51.269 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.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.296 (semver)
Create a notification for this product.
Date Public
2026-06-06 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-49956 (GCVE-0-2026-49956)

Vulnerability from cvelistv5 – Published: 2026-06-09 16:10 – Updated: 2026-06-09 17:51 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search
Summary
Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to retrieve session titles and transcript message content from profiles other than their own active profile.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.269 (semver)
Create a notification for this product.
Date Public
2026-06-05 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-49955 (GCVE-0-2026-49955)

Vulnerability from cvelistv5 – Published: 2026-06-09 16:05 – Updated: 2026-06-09 18:39 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options
Summary
Hermes WebUI before version 0.51.270 contains a resource exhaustion vulnerability that allows unauthenticated remote attackers to degrade service availability by repeatedly calling the passkey options endpoint without completing assertion. Attackers can send unlimited POST requests to the authentication endpoint, causing unbounded growth of the challenge store file and excessive CPU and disk I/O through repeated JSON file rewrites.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.270 (semver)
Create a notification for this product.
Date Public
2026-06-05 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-11322 (GCVE-0-2026-11322)

Vulnerability from cvelistv5 – Published: 2026-06-04 21:58 – Updated: 2026-06-05 20:06
VLAI
Title
Hermes WebUI before 0.51.221 Path Traversal via Symlink Workspace Bypass
Summary
Hermes WebUI prior to v0.51.221 contains a path traversal vulnerability that allows attackers to escape the workspace boundary by supplying symlinks that resolve to files or directories outside the designated workspace root. Attackers can exploit the workspace file and listing APIs, which resolve symlink targets without enforcing that the final path remains within the workspace, to read external host files accessible to the server process and disclose sensitive data such as SSH keys, cloud credentials, or application tokens.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
nesquena Hermes WebUI Affected: 0 , < 0.51.221 (semver)
Create a notification for this product.
Date Public
2026-06-02 21:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-22677 (GCVE-0-2026-22677)

Vulnerability from cvelistv5 – Published: 2026-05-13 19:08 – Updated: 2026-05-26 11:52 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint
Summary
Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace field and subsequently use relative paths in the session file API to access any file readable by the WebUI process.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.44 (semver)
Unaffected: f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3 (git)
Create a notification for this product.
Date Public
2026-05-10 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-6832 (GCVE-0-2026-6832)

Vulnerability from cvelistv5 – Published: 2026-04-21 21:44 – Updated: 2026-05-14 02:09
VLAI
Title
Nesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_id
Summary
Hermes WebUI contains an arbitrary file deletion vulnerability in the /api/session/delete endpoint that allows authenticated attackers to delete files outside the session directory by supplying an absolute path or path traversal payload in the session_id parameter. Attackers can exploit unvalidated session identifiers to construct paths that bypass the SESSION_DIR boundary and delete writable JSON files on the host system.
Severity
7.2 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < PR #409 (custom)
Create a notification for this product.
Date Public
2026-04-21 22:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-6830 (GCVE-0-2026-6830)

Vulnerability from cvelistv5 – Published: 2026-04-21 21:33 – Updated: 2026-04-22 13:43
VLAI
Title
Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch
Summary
nesquena hermes-webui contains an environment variable leakage vulnerability where profile switching does not clear environment variables from the previously active profile before loading the next profile. Attackers or users can exploit additive dotenv reload behavior to access provider API keys and other sensitive secrets from one profile context in another profile, breaking expected security isolation between profiles.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-668 - Exposure of Resource to Wrong Sphere
  • CWE-459 - Incomplete Cleanup
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < PR #351 (git)
Create a notification for this product.
Date Public
2026-04-21 22:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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CVE-2026-6829 (GCVE-0-2026-6829)

Vulnerability from cvelistv5 – Published: 2026-04-21 21:09 – Updated: 2026-04-22 12:18
VLAI
Title
nesquena hermes-webui Arbitrary Workspace Directory Access
Summary
nesquena hermes-webui contains a trust-boundary failure vulnerability that allows authenticated attackers to set or change a session workspace to an arbitrary existing directory on disk by manipulating workspace path parameters in endpoints such as /api/session/new, /api/session/update, /api/chat/start, and /api/workspaces/add. Attackers can repoint a session workspace to a directory outside the intended trusted root and then use ordinary file read and write APIs to access or modify files outside the intended workspace boundary within the permissions of the hermes-webui process.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < PR #416 (git)
Create a notification for this product.
Date Public
2026-04-21 21:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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