Summary
nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage.
Security Fix(es):
* nginx: NGINX: Arbitrary code execution via crafted HTTP requests (CVE-2026-42533)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | nginx | 2:1.26.3-9.module+el9.8.0+40222+e48d13b6.1 |
| Rocky Linux · 9 | nginx | 2:1.26.3-9.module+el9.8.0+40235+8be1317a.2 |
| Rocky Linux · 9 | nginx | 2:1.26.3-9.module+el9.8.0+40301+37c29bcc.3 |
| Rocky Linux · 9 | nginx | 2:1.26.3-9.module+el9.8.0+40194+40adfc1b |
Vulnerabilities 1
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High 8.1CVE-2026-42533 Public exploit
NGINX Map directive and Regex matching vulnerability
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 variables before referencing the map output variable. Alternatively, the same result could be achiev…