nginx heap buffer overflow PoC — CVE-2026-42533 pre-auth RCE via two-pass capture clobbering. Crash confirmed on Ubuntu 24.04.

What happened

A public source linked this CVE to an advisory or demonstration repository. Review the original reference before use.

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

• Review the original advisory and validate affected versions.
• Apply vendor-provided updates or mitigations when available.