OpenClaw up to 2026.3.11 Webhook Endpoint signature verification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$0-$5k4.60

Summaryinfo

A vulnerability was found in OpenClaw up to 2026.3.11. It has been classified as critical. This impacts an unknown function of the component Webhook Endpoint. This manipulation causes signature verification. This vulnerability is handled as CVE-2026-32974. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.3.11. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Webhook Endpoint. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

OpenClaw before 2026.3.12 contains an authentication bypass vulnerability in Feishu webhook mode when only verificationToken is configured without encryptKey, allowing acceptance of forged events. Unauthenticated network attackers can inject forged Feishu events and trigger downstream tool execution by reaching the webhook endpoint.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-32974 since 03/17/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 2026.3.12 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

Website

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: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenClaw 2026.3.12

Timelineinfo

03/17/2026 CVE reserved
03/29/2026 +12 days Advisory disclosed
03/29/2026 +0 days VulDB entry created
03/29/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-g353-mgv3-8pcj
Status: Confirmed

CVE: CVE-2026-32974 (🔒)
GCVE (CVE): GCVE-0-2026-32974
GCVE (VulDB): GCVE-100-354121

Entryinfo

Created: 03/29/2026 17:52
Changes: 03/29/2026 17:52 (76)
Complete: 🔍
Cache ID: 216:FE6:103

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