CVE-2025-6855

Public Exploit
chatchat-space Langchain-Chatchat file path traversal

Description

A vulnerability, which was classified as critical, has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This issue affects some unknown processing of the file /v1/file. The manipulation of the argument flag leads to path traversal. The exploit has been disclosed to the public and may be used.

Category

5.1
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Third-Party Advisory vuldb.com
Affected: chatchat-space Langchain-Chatchat
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.314327 vdb entry technical description
https://vuldb.com/?ctiid.314327 signature permissions required
https://vuldb.com/?submit.601162 third party advisory
https://github.com/chatchat-space/Langchain-Chatchat/issues/5354 exploit issue tracking

Frequently Asked Questions

What is the severity of CVE-2025-6855?
CVE-2025-6855 has been scored as a medium severity vulnerability.
How to fix CVE-2025-6855?
To fix CVE-2025-6855, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-6855 being actively exploited in the wild?
It is possible that CVE-2025-6855 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-6855?
CVE-2025-6855 affects chatchat-space Langchain-Chatchat.
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