VDB-358410 · CVE-2026-41299 · GHSA-6xg4-82hv-cp6f

OpenClaw up to 2026.3.27 Websocket Handshake reliance on untrusted inputs in a security decision

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in OpenClaw up to 2026.3.27. This affects an unknown function of the component Websocket Handshake Handler. The manipulation results in reliance on untrusted inputs in a security decision. This vulnerability is known as CVE-2026-41299. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in OpenClaw up to 2026.3.27. Affected is an unknown part of the component Websocket Handshake Handler. The manipulation with an unknown input leads to a reliance on untrusted inputs in a security decision vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

OpenClaw before 2026.3.28 contains an authorization bypass vulnerability in the chat.send gateway method where ACP-only provenance fields are gated by self-declared client metadata from WebSocket handshake rather than verified authorization state. Authenticated operator clients can spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-41299 since 04/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 2026.3.28 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202604-4184). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Artificial Intelligence Software

Name

OpenClaw

Version

Website

Product: https://github.com/openclaw/openclaw/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (VulnCheck): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Reliance on untrusted inputs in a security decision
CWE: CWE-807 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenClaw 2026.3.28

Timelineinfo

04/20/2026 CVE reserved
04/21/2026 +1 days Advisory disclosed
04/21/2026 +0 days VulDB entry created
04/22/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-6xg4-82hv-cp6f
Status: Confirmed

CVE: CVE-2026-41299 (🔒)
GCVE (CVE): GCVE-0-2026-41299
GCVE (VulDB): GCVE-100-358410
CNNVD: CNNVD-202604-4184 - OpenClaw 安全漏洞

Entryinfo

Created: 04/21/2026 07:21
Updated: 04/22/2026 23:26
Changes: 04/21/2026 07:21 (76), 04/22/2026 23:26 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.