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4.8
Langfuse could mishandle specially crafted web addresses
published 5 days ago
Summary
The Langfuse application uses a URL handling library that can be tricked by specially formed web addresses. This could cause the program to behave incorrectly or stop working, potentially affecting service availability. Update Langfuse to the latest version that includes the fix or replace the vulnerable component with a safe alternative.
What to do
- Update cleanstart langfuse to version 3.225.9-r9.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| CleanStart | cleanstart | langfuse |
< 3.225.9-r9 Fix: upgrade to 3.225.9-r9
|
Original advisory text
fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node
Security vulnerability affects the langfuse package. fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node.
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Timeline
Published31 Oct 2026
Updated31 Oct 2026
First seen31 Oct 2026
Sources
CLEANSTART-2026-CU33434 · OSV
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