High severity · published Jun 29, 2025
CVE-2025-6855
chatchat-space Langchain-Chatchat file path traversal
8.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LA
Langchain-Chatchat · chatchat-space
0.3.0; 0.3.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6855
Exploit
https://github.com/chatchat-space/Langchain-Chatchat/issues/5354
Permissions Required
https://vuldb.com/?ctiid.314327
Third Party Advisory
https://vuldb.com/?id.314327
Third Party Advisory
https://vuldb.com/?submit.601162
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