Medium severity6.5NVD Advisory· Published May 13, 2026· Updated May 13, 2026
CVE-2026-42946
CVE-2026-42946
Description
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
2- 18-year-old NGINX vulnerability allows DoS, potential RCEBleepingComputer · May 14, 2026
- 18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCEThe Hacker News · May 14, 2026