Vulnerabilitycritical
CVE-2026-42533: Critical NGINX Bug Could Turn HTTP Requests Into Server Takeovers
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-42533 | A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture… | 9.2 | <1% | PoC ×2 |
From the original article
2 min read at securityaffairs.com
F5 fixes critical nginx flaw CVE-2026-42533 that can crash servers and, in some cases, allow remote code execution through crafted HTTP requests. F5 released patches for a critical nginx vulnerability, tracked as CVE-2026-42533 (CVSS score of 9. 2), that can allow an unauthenticated attacker to trigger a heap buffer overflow using specially crafted HTTP requests.
By @securityaffairs · securityaffairs.com
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