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hollowbyte news

2 stories
opensslhigh

OpenSSL Vulnerability Allows Memory Exhaustion via 11-Byte Payload

A denial-of-service vulnerability, dubbed "HollowByte," has been discovered in OpenSSL that allows remote, unauthenticated attackers to exhaust server memory and trigger denial-of-service attacks using a specially crafted 11-byte payload. The flaw was disclosed by Okta's Red Team on July 18, 2026.

opensslhigh

HollowByte DDoS flaw bloats OpenSSL server memory

A denial-of-service vulnerability, dubbed HollowByte, has been identified in OpenSSL, allowing unauthenticated attackers to deplete server memory with minimal data transmission. The OpenSSL team has addressed the flaw in recent updates, though no CVE identifier has been assigned. Organizations are strongly advised to update their OpenSSL installations to a patched version.