CVE-2026-35188

CVE-2026-35188

Issue summary: A malicious server can exploit TLS OCSP stapling by delivering a crafted response through the status_request extension, triggering a double-free in the client's certificate verification path. Impact summary: Successful expl…

Vulnerability class: Double Free

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-35188?
CVE-2026-35188 is a medium-severity vulnerability, classified under Double Free. CVSS score: 5.0/10. Published 2026-06-09.
How severe is CVE-2026-35188?
Medium severity. CVSS v3 base score is 5.0 out of 10.