A newly disclosed flaw tracked as CVE-2026-42533 affects nginx’s script engine and has been silently exploitable since March 2011, when the map directive gained regex support. Security researcher Stan Shaw reporte…
| CVE ID | CVE-2026-42533 |
| Vendor | Unknown Vendor |
| Affected Product | Unknown Product |
| Vulnerability Type | Vulnerability |
| CVSS Score | 8.1 (HIGH) |
| EPSS Score | 0.8% probability of exploitation in the next 30 days |
| Actively Exploited | ✅ Yes |
| Patch Status | Pending Vendor Disclosure |
| Reported By | CYBERDUDEBIVASH SENTINEL APEX Intelligence (via sentinel_apex) |
A newly disclosed flaw tracked as CVE-2026-42533 affects nginx’s script engine and has been silently exploitable since March 2011, when the map directive gained regex support. Security researcher Stan Shaw reported the bug to F5 SIRT, which coordinated a fix released in ngi... [Full analysis available on Pro]
Sigma rules, YARA signatures, IOC table, and SIEM queries for Splunk, Elastic, Sentinel, and Chronicle — deployable in 5 minutes.