CVEvulnerability
CVE-2026-7845
1.2 LOW
Official page ↗
- Status
- Deferred
- Published
- 2026-05-05
- Last modified
- 2026-07-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 1.2 LOW — CVSS: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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 2.6 LOW — CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 1.4 LOW — AV:A/AC:H/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-327, CWE-328
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.
Related
References
- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-1-tobytes-Hash-Collision.md github.com
- https://github.com/chatchat-space/Langchain-Chatchat/ github.com
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5462 github.com
- https://vuldb.com/submit/807794 vuldb.com
- https://vuldb.com/vuln/361124 vuldb.com
- https://vuldb.com/vuln/361124/cti vuldb.com
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5462 github.com