OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the OpenClaude MCP authentication flow starts a temporary local HTTP server to handle OAuth callbacks. To prevent CSRF attacks, the server validates a state parameter against an internally stored value. However, due to a logic flaw in the order of conditionals, an attacker can completely bypass this check and force the server to shut down — without knowing the state value at all. This issue has been patched in version 0.5.1.
References
| Link | Resource |
|---|---|
| https://github.com/Gitlawb/openclaude/commit/739b8d1f40fde0e401a5cbd2b9a55d88bd5124ad | Patch |
| https://github.com/Gitlawb/openclaude/releases/tag/v0.5.1 | Release Notes |
| https://github.com/Gitlawb/openclaude/security/advisories/GHSA-c73c-x77g-854r | Exploit Vendor Advisory |
| https://github.com/Gitlawb/openclaude/security/advisories/GHSA-c73c-x77g-854r | Exploit Vendor Advisory |
Configurations
History
03 Jun 2026, 16:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/Gitlawb/openclaude/commit/739b8d1f40fde0e401a5cbd2b9a55d88bd5124ad - Patch | |
| References | () https://github.com/Gitlawb/openclaude/releases/tag/v0.5.1 - Release Notes | |
| References | () https://github.com/Gitlawb/openclaude/security/advisories/GHSA-c73c-x77g-854r - Exploit, Vendor Advisory | |
| First Time |
Gitlawb openclaude
Gitlawb |
|
| CPE | cpe:2.3:a:gitlawb:openclaude:*:*:*:*:*:*:*:* |
02 Jun 2026, 20:16
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/Gitlawb/openclaude/security/advisories/GHSA-c73c-x77g-854r - |
02 Jun 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-02 17:16
Updated : 2026-06-03 16:54
NVD link : CVE-2026-42073
Mitre link : CVE-2026-42073
CVE.ORG link : CVE-2026-42073
JSON object : View
Products Affected
gitlawb
- openclaude