CVE-2026-6830 MEDIUM

CVE-2026-6830: Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch

Vendor Nesquena
Product hermes-webui
Weakness CWE-668
Published April 21, 2026
Last update April 22, 2026

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 22, 2026 Record updated