CVE-2026-54771
Langroid chat apps allow unauthorized tool invocation via crafted JSON payloads
Is CVE-2026-54771 being exploited?
Not confirmed. CVE-2026-54771 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-54771?
CVE-2026-54771 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-54771?
Yes. A fix has been recorded for CVE-2026-54771. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-54771 affect?
CVE-2026-54771 affects Langroid < 0.65.3, Applications exposing Langroid chat interfaces, Third-party tools registered with Langroid. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-54771?
Upgrade to Langroid 0.65.3+, restrict untrusted chat inputs, audit tool registrations
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can bypass use=False restrictions to invoke registered tools via chat API, enabling data access, command or code execution.
Patch when possible
- affected< 0.65.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.