Description
Langfuse is an open source large language model engineering platform. In versions 3.146.0 and below, the /api/public/slack/install endpoint initiates Slack OAuth using a projectId provided by the client without authentication or authorization. The projectId is preserved throughout the OAuth flow, and the callback stores installations based on this untrusted metadata. This allows an attacker to bind their Slack workspace to any project and potentially receive changes to prompts stored in Langfuse Prompt Management. An attacker can replace existing Prompt Slack Automation integrations or pre-register a malicious one, though the latter requires an authenticated user to unknowingly configure it despite visible workspace and channel indicators in the UI. This issue has been fixed in version 3.147.0.
INFO
Published Date :
2026-01-22T03:07:03.784Z
Last Modified :
2026-01-22T12:40:42.009Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-24055 vulnerability.
| Vendors | Products |
|---|---|
| Langfuse |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-24055.
