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GHSA-wmvv-fhm6-w34x

Langchain-Chatchat Uses a Broken or Risky Cryptographic Algorithm

Source: GitHub Advisory Database (reviewed) Low CVE-2026-7845

Packages

EcosystemPackageAffectedFixed in
PyPI langchain-chatchat <= 0.3.1.3 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.