CVE-2026-54771CWE-75

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

High · published July 9, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
32.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00392 · 32.4th percentile
Weakness
CWE-75 · Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
Published
2026-07-09T23:52Z
EPSS history
Timeline
  • 09 JUL 23:52Z
    Langroid: handle_message() executes user-supplied tool JSON without sender verification
    cvelistv5