CVE-2026-6830
CVE-2026-6830 is a low-severity vulnerability with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-459.
Key facts
- Severity: Low (CVSS 3.x base score 3.3)
- CVSS v4: 4.8
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-24515
- Weakness: CWE-459
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-6830?
- 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.
- How severe is CVE-2026-6830?
- CVE-2026-6830 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-6830 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-6830?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-6830 have an EU (EUVD) identifier?
- Yes. CVE-2026-6830 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24515.
- When was CVE-2026-6830 published?
- CVE-2026-6830 was published on 2026-04-21 and last updated on 2026-06-17.
References
- https://github.com/nesquena/hermes-webui/commit/88dc8bbe26a6055161d3251b70f5cd3d3c5831b0
- https://github.com/nesquena/hermes-webui/pull/351
- https://github.com/nesquena/hermes-webui/releases/tag/v0.50.12
- https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132
- https://www.vulncheck.com/advisories/nesquena-hermes-webui-environment-variable-credential-leakage-via-profile-switch
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