Denial of Service Vulnerability in Gitlawb Openclaude xAI OAuth Callback Handler
CVE-2026-90712

5.3MEDIUM

Key Information:

Vendor: Gitlawb
Status: Openclaude
Vendor: CVE Published:; 14 September 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90712?

A vulnerability in the Gitlawb Openclaude product has been identified within the xAI OAuth Callback Handler component, specifically in the waitForCallback function. An attacker can manipulate input parameters, potentially leading to a denial of service condition. Current implementations, particularly versions up to 0.30.0, are vulnerable to this remote attack, with exploits publicly available. Despite an early warning through an issue report, there has been no response from the development team addressing this significant security concern.

Affected Version(s)

openclaude 0.1

openclaude 0.2

openclaude 0.3

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-2026-90712 - Proof of Concept