VDB-358747 · CVE-2026-6830 · GCVE-0-2026-6830

nesquena hermes-webui up to 350 Environment Variable exposure of resource

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in nesquena hermes-webui up to 350. This issue affects some unknown processing of the component Environment Variable Handler. This manipulation causes exposure of resource. This vulnerability is tracked as CVE-2026-6830. The attack is restricted to local execution. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in nesquena hermes-webui up to 350. It has been declared as problematic. Affected by this vulnerability is an unknown code of the component Environment Variable Handler. The manipulation with an unknown input leads to a exposure of resource vulnerability. The CWE definition for the vulnerability is CWE-668. The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The weakness was disclosed by Chia Min Jun Lennon as 88dc8bbe26a6055161d3251b70f5cd3d3c5831b0. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-6830 since 04/21/2026. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 351 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

nesquena

Name

hermes-webui

Version

Website

Product: https://github.com/nesquena/hermes-webui/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Exposure of resource
CWE: CWE-668 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: hermes-webui 351

Timelineinfo

04/21/2026 CVE reserved
04/22/2026 +1 days Advisory disclosed
04/22/2026 +0 days VulDB entry created
04/22/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 88dc8bbe26a6055161d3251b70f5cd3d3c5831b0
Researcher: Chia Min Jun Lennon
Status: Confirmed

CVE: CVE-2026-6830 (🔒)
GCVE (CVE): GCVE-0-2026-6830
GCVE (VulDB): GCVE-100-358747

Entryinfo

Created: 04/22/2026 07:28
Changes: 04/22/2026 07:28 (77)
Complete: 🔍
Cache ID: 216::103