CVE-2026-7845

LOW
Published May 5, 2026

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...

Full CISO analysis pending enrichment.

Severity & Risk

CVSS 3.1
2.6 / 10
EPSS
N/A
Exploitation Status
No known exploitation
Sophistication
N/A

Attack Surface

AV AC PR UI S C I A
AV Adjacent
AC High
PR Low
UI None
S Unchanged
C None
I Low
A None

Recommended Action

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Compliance Impact

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-7845?

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 bee

Is CVE-2026-7845 actively exploited?

No confirmed active exploitation of CVE-2026-7845 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-7845?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-7845?

CVE-2026-7845 has a CVSS v3.1 base score of 2.6 (LOW).

Technical Details

NVD 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.

CVSS Vector

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Timeline

Published
May 5, 2026
Last Modified
May 5, 2026
First Seen
May 5, 2026