EUVD-2025-19478
GHSA-f823-phmg-x5fr
Severity by source
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
7DescriptionCVE.org
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.
AnalysisAI
Path traversal vulnerability in Langchain-Chatchat up to 0.3.1 allows authenticated attackers with low privileges to read, modify, or delete files on the server via the /v1/file endpoint by manipulating the flag argument. Public exploit code is available, increasing risk for attackers on the same network. EPSS score is low (0.20%), suggesting limited active exploitation currently.
More in Langchain Chatchat
View allPath traversal in Langchain-Chatchat's backend file upload endpoint allows remote attackers to manipulate file paths via
Path traversal in Langchain-Chatchat version 0.3.1 and earlier allows authenticated low-privilege users to read arbitrar
Missing authentication in Langchain-Chatchat up to version 0.3.1.3 allows unauthenticated local network attackers to acc
Insufficiently random file ID generation in Langchain-Chatchat up to version 0.3.1.3 allows authenticated local network
Time-of-check time-of-use (TOCTOU) vulnerability in Langchain-Chatchat up to 0.3.1.3 allows authenticated local network
Weak hash function in the Vision Chat Paste Image Handler of Langchain-Chatchat up to 0.3.1.3 allows local network attac
Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today