# OpenSSL 'HollowByte' Flaw Lets Attackers Freeze Servers with Tiny TLS Requests

A vulnerability named HollowByte in OpenSSL allows attackers to trigger memory allocation freezes by sending specially crafted 11-byte TLS requests. This can lead to denial-of-service conditions on affected servers. The flaw highlights ongoing security risks in widely-used cryptographic libraries.

**Importance:** 3/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/07/openssl-hollowbyte-flaw-could-freeze.html) — Sat, 18 Jul 2026 01:50:53 +0530