CVE-2026-7845

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

LOW
2.6
CVSS Score
Published: May 5, 2026 at 03:45 PM UTC
Updated: July 24, 2026 at 08:23 AM UTC
1 product affected across 1 vendorLangchain-Chatchat

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Severity
LOW2.6
Exploit prediction
EPSS 0.1%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/361124
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/361124/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/807794

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.6LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-328CWE-327

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