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TI-2026-39577 Aliases CVE-2026-54771GHSA-gjgq-w2m6-wr5q

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

Priority HIGH 70CWE-75Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00392 33rd percentileScored 2026-11-07
Fix Fixed langroid (langroid): 0.65.3langroid (PyPI): 0.65.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
langroidlangroidbefore 0.65.30.65.3Patch availableCNA
—langroid (PyPI)before 0.65.30.65.3Patch availableGHSA-gjgq-w2m6-wr5q
  • langroid Vendorlangroid Affected before 0.65.3 Fixed in 0.65.3 Patch available CNA
  • langroid (PyPI) Vendor— Affected before 0.65.3 Fixed in 0.65.3 Patch available GHSA-gjgq-w2m6-wr5q

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:langroid:langroid:*:*:*:*:*:*:*:*——langroid
  • cpe:2.3:a:langroid:langroid:*:*:*:*:*:*:*:* Versions — — ·langroid

Remediation

  • Fix · CNA langroid (langroid) Fixed in 0.65.3
  • Fix · GHSA-gjgq-w2m6-wr5q langroid (PyPI) Fixed in 0.65.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54771
  2. 2026-10-03 Alias added: GHSA-gjgq-w2m6-wr5q

References

Other 2

  • TI-2026-39575 Langroid: Sandbox Escape to Remote Code Execution via Incomplete `eval()` Mitigation in TableChatAgent CVSS 3.1CRITICAL 10.0
  • TI-2026-20919 Langroid has Prompt to SQL Injection, Leading to RCE CVSS 3.1CRITICAL 9.8
  • TI-2026-20592 Langroid has WAF Bypass Leading to RCE in TableChatAgent CVSS 4.0CRITICAL 9.4
  • TI-2025-29395 Langroid has a Code Injection vulnerability in TableChatAgent CVSS 3.1CRITICAL 9.8
  • TI-2026-40145 Injection in langroid CVSS 4.0CRITICAL 9.2
  • TI-2026-39566 Langroid: SQLChatAgent dangerous-function blocklist can be bypassed with quoted or schema-qualified pg_read_file calls CVSS 4.0CRITICAL 9.3
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences