CVE-2026-42327: rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
HIGH
CVSS 7.5
Exploit Available
Published: May 5, 2026 | Last Modified: May 5, 2026
Description
rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
Ghostwire Analysis — What This Means Practically
- High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
- Exploit code is reported to be available, increasing the likelihood of active exploitation.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
References