VDB-372088 · CVE-2026-53871 · EUVD-2026-37776

nesquena hermes-webui up to 0.51.367 get_profile_cookie cookie validation

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.
7.0	$0-$5k	0.93

Summaryinfo

A vulnerability labeled as critical has been found in nesquena hermes-webui up to 0.51.367. This affects the function get_profile_cookie. Executing a manipulation can lead to cookie validation. This vulnerability appears as CVE-2026-53871. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in nesquena hermes-webui up to 0.51.367. This vulnerability affects the function get_profile_cookie. The manipulation with an unknown input leads to a cookie validation vulnerability. The CWE definition for the vulnerability is CWE-565. The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the get_profile_cookie() function that accepts unauthenticated profile names from the hermes_profile cookie. An authenticated attacker can forge the hermes_profile cookie value to bypass profile-scoped authorization checks and access sessions, files, and resources across different profiles.

The weakness was presented by Chia Min Jun Lennon. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-53871 since 06/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

Upgrading to version 0.51.368 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37776). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

nesquena

Name

hermes-webui

Version

0.51.367

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: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.1
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: Cookie validation
CWE: CWE-565 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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 0.51.368

Timelineinfo

06/10/2026 CVE reserved
06/17/2026 +7 days Advisory disclosed
06/17/2026 +0 days VulDB entry created
06/18/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: Chia Min Jun Lennon
Status: Confirmed

CVE: CVE-2026-53871 (🔒)
GCVE (CVE): GCVE-0-2026-53871
GCVE (VulDB): GCVE-100-372088
EUVD: 🔒

Entryinfo

Created: 06/17/2026 20:46
Updated: 06/18/2026 18:52
Changes: 06/17/2026 20:46 (76), 06/18/2026 18:52 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.