THREAT OPS › Threat News › [NVD] CVE-2026-54876 (HIGH 7.5) — 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-tunable amount of memory
per TLS handshake
[NVD] CVE-2026-54876 (HIGH 7.5) — 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-tunable amount of memory per TLS handshake
CVE-2026-54876 CVSS: 7.5 HIGH Published: 2026-08-05T15:16:53.487
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-tunable amount of memory per TLS handshake in a victim client application. A long-running client
Indicators of compromise
- CVE-2026-54876cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-54876
Same event, other sources
- CVE-2026-54876: OpenSSL: Client-Side Memory Leak in OCSP Response Checkingoss_sec · 2026-08-05