Memory Allocation with Excessive Size Value Affecting nginx package, versions [0.8.42,1.30.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-NGINX-16680246
- published14 May 2026
- disclosed13 May 2026
- creditZhenpeng (Leo) Lin
Introduced: 13 May 2026
CVE-2026-42946 (opens in a new tab)How to fix?
Upgrade nginx to version 1.30.1 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the ngx_http_scgi_module and ngx_http_uwsgi_module when scgi_pass or uwsgi_pass is configured. An attacker can cause excessive memory allocation or read memory contents of the worker process by controlling responses from an upstream server through a man-in-the-middle position. This may also allow the attacker to restart the worker process.