CVE-2026-7845Low· 2.6▾ SunlitLangchain-Chatchat Uses a Broken or Risky Cryptographic Algorithm
▾ Sunlit zone — Low / medium · no exploitation signal
impact 14.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.1%
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.
langchain-chatchat <= 0.3.1.3Refer to the advisory for the patched release.
Connected by shared product, vendor, weakness, or advisory.
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