CVE-2026-54771

Langroid: handle_message() executes user-supplied tool JSON without sender verification

State: Published
Severity: 8.1 High
Published: Jul 9, 2026
Updated: Jul 10, 2026
Reserved: Jun 15, 2026

Description

Langroid is a framework for building large-language-model-powered applications. Prior to version 0.65.3, a Langroid application exposing a chat interface to untrusted users may allow direct tool invocation via raw JSON payloads, even when tools are registered with `use=False, handle=True`. Version 0.65.3 fixes the issue.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)

Affected Products

Product	Versions
langroidlangroid	< 0.65.3Affected

References

https://github.com/langroid/langroid/security/advisories/GHSA-gjgq-w2m6-wr5q

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