OpenClaw up to 2026.4.9 /tabs/action authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in OpenClaw up to 2026.4.9. Impacted is an unknown function of the file /tabs/action. The manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2026-42439. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.4.9 and classified as critical. This issue affects some unknown processing of the file /tabs/action. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenClaw before 2026.4.10 contains a server-side request forgery policy bypass vulnerability in the browser tabs action select and close routes. Attackers can bypass configured browser SSRF policy protections by exploiting the /tabs/action endpoint to perform unauthorized tab navigation operations.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-42439 since 04/27/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available.

Upgrading to version 2026.4.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1161). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Open Source OpenClaw

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: 7.4
VulDB Meta Temp Score: 7.2

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

CNA Base Score: 8.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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 2026.4.10

Timelineinfo

04/27/2026 CVE reserved
05/05/2026 +8 days Advisory disclosed
05/05/2026 +0 days VulDB entry created
05/06/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-42439 (🔒)
GCVE (CVE): GCVE-0-2026-42439
GCVE (VulDB): GCVE-100-361157
CERT Bund: WID-SEC-2026-1161 - OpenClaw: Mehrere Schwachstellen

Entryinfo

Created: 05/05/2026 14:06
Updated: 05/06/2026 10:32
Changes: 05/05/2026 14:06 (75), 05/06/2026 10:32 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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