Riskcovery

CVE-2026-7845

chatchat-space Langchain-Chatchat Vision Chat Paste Image dialogue.py PIL.Image.tobytes weak hash

State
Published
Severity
2.1 Low
Published
May 5, 2026
Updated
May 5, 2026
Reserved
May 5, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.02.1 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:PVulDB
3.12.6 LowCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:RVulDB
3.02.6 LowCVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:RVulDB
2.01.4 LowAV:A/AC:H/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:URVulDB

Weaknesses

Affected Products

ProductVersions
Langchain-Chatchatchatchat-space
  • 0.3.1.0Affected
  • 0.3.1.1Affected
  • 0.3.1.2Affected
  • 0.3.1.3Affected

References

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