Vulnerability Description
A flaw has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. This issue affects the function PIL.Image.tobytes of the file libs/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py of the component Vision Chat Paste Image Handler. This manipulation of the argument paste_image.image_data causes use of weak hash. The attacker needs to be present on the local network. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-1-tobytes-Has
- https://github.com/chatchat-space/Langchain-Chatchat/
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5462
- https://vuldb.com/submit/807794
- https://vuldb.com/vuln/361124
- https://vuldb.com/vuln/361124/cti
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5462
FAQ
What is CVE-2026-7845?
CVE-2026-7845 is a vulnerability with a CVSS score of 2.6 (LOW). A flaw has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. This issue affects the function PIL.Image.tobytes of the file libs/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py o...
How severe is CVE-2026-7845?
CVE-2026-7845 has been rated LOW with a CVSS base score of 2.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-7845?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.