OpenClaw up to 2026.1.26 assertPublicHostname web-fetch.ts server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k1.86

Summaryinfo

A vulnerability, which was classified as critical, has been found in OpenClaw up to 2026.1.26. This affects an unknown part of the file src/agents/tools/web-fetch.ts of the component assertPublicHostname Handler. The manipulation leads to server-side request forgery. This vulnerability is uniquely identified as CVE-2026-6011. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.1.26 and classified as critical. This issue affects an unknown functionality of the file src/agents/tools/web-fetch.ts of the component assertPublicHostname Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-6011. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept.

Upgrading to version 2026.1.29 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b623557a2ec7e271bda003eb3ac33fbb2e218505 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

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 2026.1.29
Patch: b623557a2ec7e271bda003eb3ac33fbb2e218505

Timelineinfo

04/09/2026 Advisory disclosed
04/09/2026 +0 days VulDB entry created
04/09/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-6011 (🔒)
GCVE (CVE): GCVE-0-2026-6011
GCVE (VulDB): GCVE-100-356567
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/09/2026 16:34
Changes: 04/09/2026 16:34 (60)
Complete: 🔍
Submitter: ZAST.AI
Cache ID: 216:E63:103

Submitinfo

Accepted

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