Out-of-bounds Write Affecting nginx package, versions [1.30.4,1.30.5)[1.29.2,1.31.6)
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-20158583
- published27 Sept 2026
- disclosed15 Sept 2026
- creditUnknown
Introduced: 15 Sep 2026
NewCVE-2026-90439 (opens in a new tab)How to fix?
Upgrade nginx to version 1.30.5, 1.31.6 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the ngx_http_v3_module process during a TLS handshake when HTTP/3 is used with certain OpenSSL versions. An attacker can cause service disruption or limited data corruption by sending specially crafted network traffic.