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Vulnerability · Published May 5, 2026 · Assigned by VulDB

CVE-2026-7847chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values

Low 2.6

In plain English

A low-severity weak randomness in Langchain-Chatchat from chatchat-space. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)2.6Low
Exploit odds (30 days)0.2%top 85.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIlangchain-chatchatno fix listedGHSA-jv4p-mhmp-69vw
PyPIlangchain-chatchatno fix listedPYSEC-2026-2557

Affected products (as reported)

VendorProductVersions
chatchat-space Langchain-Chatchat 0.3.1.00.3.1.10.3.1.20.3.1.3

Weakness: CWE-330, CWE-310 · Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References