CVE-2025-6853 is a critical path traversal vulnerability affecting chatchat-space Langchain-Chatchat versions up to 0.3.1. Specifically, the upload_temp_docs function in the Backend component is susceptible to manipulation of the 'flag' argument. This vulnerability has a CVSS score of 9.8 (Critical), indicating it can be exploited remotely with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. While not currently listed on the KEV catalog, the exploit has been publicly disclosed, and there is significant community discussion and exploit code available on GitHub, suggesting a high potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.3.1CPE matchmatch criteria | cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.