chatchat-space Langchain-Chatchat files path traversal
Priority MEDIUM 57CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.
Summary
A vulnerability classified as problematic was found in chatchat-space Langchain-Chatchat up to 0.3.1. This vulnerability affects unknown code of the file /v1/files?purpose=assistants. The manipulation leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00592 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| chatchat-space | Langchain-Chatchat | 0.3.0; 0.3.1 | — | No fix listed | CNA |
| — | langchain-chatchat (PyPI) | up to 0.3.1 | — | No fix listed | GHSA-8v8h-4pjx-rg73 |
- Langchain-Chatchat Vendorchatchat-space Affected 0.3.0; 0.3.1 Fixed in — No fix listed CNA
- langchain-chatchat (PyPI) Vendor— Affected up to 0.3.1 Fixed in — No fix listed GHSA-8v8h-4pjx-rg73
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:* | up to 0.3.1 | Vulnerable | chatchat-space |
- cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:* Versions up to 0.3.1 Vulnerable ·chatchat-space
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-6854
- 2026-10-03 Alias added: GHSA-8v8h-4pjx-rg73
References
More chatchat-space Langchain-chatchat vulnerabilities
- TI-2025-06226 chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversal CVSS 4.0MEDIUM 5.3
- TI-2025-06228 chatchat-space Langchain-Chatchat file path traversal CVSS 4.0MEDIUM 5.1
Sources
- CVE-2025-6854 · CVE Program
- CVE-2025-6854 · NVD
- FIRST EPSS
- GHSA-8v8h-4pjx-rg73 · GitHub Advisory Database · CC BY 4.0
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