Server-Side Request Forgery Vulnerability in OpenClaw Web Fetch Component
CVE-2026-6011

6.3MEDIUM

Key Information:

Vendor

OpenClaw

Status
Openclaw
Vendor
CVE Published:
10 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6011?

A vulnerability exists in OpenClaw versions up to 2026.1.26, specifically within the 'assertPublicHostname' handler found in the file 'src/agents/tools/web-fetch.ts'. This issue allows remote attackers to manipulate requests, potentially leading to server-side request forgery (SSRF). Although exploiting this vulnerability is complex and requires specific conditions, the possibility of such attacks poses a significant security risk. Users are strongly encouraged to upgrade to version 2026.1.29 to mitigate this issue, as it includes essential patches addressing the vulnerability.

Affected Version(s)

OpenClaw 2026.1.0

OpenClaw 2026.1.1

OpenClaw 2026.1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6011 - Proof of Concept

References

https://vuldb.com/vuln/356567
vdb-entry
https://vuldb.com/vuln/356567/cti
signaturepermissions-required
https://vuldb.com/submit/795224
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZAST.AI (VulDB User)
.