CVE-2026-112265

MediumCVSS 6.5/10Last modified Oct 19, 2026

Description

LangBot through 4.11.0 contains a missing authenticity verification vulnerability that allows unauthenticated attackers to inject forged Lark/Feishu events by skipping signature checks. Attackers knowing a bot UUID can POST fabricated im.message.receive_v1 or card.action.trigger events to drive the LLM pipeline, tools, and approvals as other users.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Weakness enumeration

CWE-345

Affected software

Vendor	Product	Versions
langbot-app	LangBot	<= 4.11.0

References

Timeline

Published: Oct 19, 2026
Last modified: Oct 19, 2026
NVD status: Deferred

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