What is CVE-2026-42073?

CVE-2026-42073 is a medium-severity vulnerability in Gitlawb Openclaude, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2026-06-02.

How severe is CVE-2026-42073?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CSRF in Gitlawb Openclaude

CVE-2026-42073

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…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.000 (11.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Gitlawb Openclaude — versions < 0.5.1

Weakness classification (CWE)

References

security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC, Release Notes)
security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42073?: CVE-2026-42073 is a medium-severity vulnerability in Gitlawb Openclaude, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2026-06-02.
How severe is CVE-2026-42073?: Medium severity. CVSS v3 base score is 6.5 out of 10.