Policy Confusion in OpenClaw Allows Unauthorized Nextcloud Talk Access

Publication date: 2026-04-09

Last updated on: 2026-04-17

Assigner: VulnCheck

Description

OpenClaw before 2026.3.22 contains a policy confusion vulnerability in room authorization that matches colliding room names instead of stable room tokens. Attackers can exploit similarly named rooms to bypass allowlist policies and gain unauthorized access to protected Nextcloud Talk rooms.

CVSS Scores

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Meta Information

Published

2026-04-09

Last Modified

2026-04-17

Generated

2026-07-06

AI Q&A

2026-04-10

EPSS Evaluated

2026-07-05

NVD

CVE-2026-35624

EUVD

EUVD-2026-21106

Affected Vendors & Products

Vendor	Product	Version / Range
openclaw	openclaw	to 2026.3.22 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-807	The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.

Attack-Flow Graph

Executive Summary

This vulnerability exists in OpenClaw versions before 2026.3.22 and involves a policy confusion in room authorization. Instead of using stable room tokens to verify access, the system matches colliding room names. Attackers can exploit this by creating or using similarly named rooms to bypass allowlist policies and gain unauthorized access to protected Nextcloud Talk rooms.

Impact Analysis

The vulnerability allows attackers to bypass allowlist policies and gain unauthorized access to protected Nextcloud Talk rooms. This means sensitive conversations or data shared within these rooms could be exposed to unauthorized individuals, potentially leading to information leakage or privacy breaches.

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