CVE-2026-27004 OpenClaw session tool visibility hardening and Telegram webhook secret fallback

Medium 6.9 Published Updated

In shared multi-user deployments, session tools may expose transcript content across peer sessions due to insufficient visibility scoping.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-27004?

CVE-2026-27004 is a medium-severity vulnerability in Openclaw Openclaw, published on 19 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OpenClaw is a personal AI assistant. Prior to version 2026.2.15, in some shared-agent deployments, OpenClaw session tools (`sessions_list`, `sessions_history`, `sessions_send`) allowed broader session targeting than some operators intended. This is primarily a configuration/visibility-scoping issue in multi-user environments where peers are not equally trusted. In Telegram webhook mode, monitor startup also did not fall back to per-account `webhookSecret` when only the account-level secret was configured. In shared-agent, multi-user, less-trusted environments: session-tool access could expose transcript content across peer sessions. In single-agent or trusted environments, practical impact is limited. In Telegram webhook mode, account-level secret wiring could be missed unless an explicit monitor webhook secret override was provided. Version 2026.2.15 fixes the issue.

Weakness: CWE-346, CWE-209

Which versions are affected by CVE-2026-27004?

2 open source packages ship an affected version, including openclaw. It affects 1 product.

PackageAffectedFixed in
openclaw npmAll versions2026.2.15
openclaw npmAll versions2026.2.15

Products include Openclaw Openclaw.

How do I fix CVE-2026-27004?

Upgrade openclaw to 2026.2.15 or later.

Is CVE-2026-27004 being exploited?

There is no known exploitation of CVE-2026-27004 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-6hf3-mhgc-cm65.

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