CVE-2026-41376 OpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation

Low 2.3 Published Updated

Attackers can bypass sender allowlists to read restricted Matrix thread context messages in OpenClaw, requiring an upgrade to fix.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-41376?

CVE-2026-41376 is a low-severity missing authorization vulnerability in Openclaw Openclaw, published on 28 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.

Weakness: CWE-346

Which versions are affected by CVE-2026-41376?

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

PackageAffectedFixed in
openclaw npmAll versions2026.3.31
openclaw npmAll versions2026.3.31

Products include Openclaw Openclaw.

How do I fix CVE-2026-41376?

Upgrade openclaw to 2026.3.31 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-41376 being exploited?

There is no known exploitation of CVE-2026-41376 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-rg8m-3943-vm6q, MINI-42m4-gjjr-737p.

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