Vulnerability in Openssl

CVE-2026-54876

Issue summary: A malicious TLS server can cause a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains no single response entries. Impact summary: An attacker can leak an attacker-t…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-54876?
CVE-2026-54876 is a high-severity vulnerability in Openssl, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2026-08-05.
How severe is CVE-2026-54876?
High severity. CVSS v3 base score is 7.5 out of 10.