Chainlit up to 2.8.4 authorization

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 (≈)
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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.
4.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Chainlit up to 2.8.4 and classified as problematic. Affected by this vulnerability is an unknown functionality. This manipulation causes authorization. This vulnerability is registered as CVE-2025-68492. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Chainlit up to 2.8.4. It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If this vulnerability is exploited, threads may be viewed or thread ownership may be obtained by an attacker who can log in to the product.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-68492 since 12/19/2025. The exploitation appears to be difficult. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.8.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-2448). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

Website

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: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (jpcert): 🔒

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chainlit 2.8.5

Timelineinfo

12/19/2025 CVE reserved
01/14/2026 +26 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
01/15/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-68492 (🔒)
GCVE (CVE): GCVE-0-2025-68492
GCVE (VulDB): GCVE-100-340945
EUVD: 🔒

Entryinfo

Created: 01/14/2026 08:15
Updated: 01/15/2026 04:25
Changes: 01/14/2026 08:15 (39), 01/14/2026 08:16 (34), 01/15/2026 04:25 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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