CVE-2026-90439
EUVD-2026-7858515.09.2026, 15:17
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions <= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| f5 | nginx_plus | 37.1.0.1 ≤ 𝑥 < 37.1.1.1 | CNA |
| f5 | nginx_plus | 37.0.0.1 ≤ 𝑥 < 37.0.6.1 | CNA |
| f5 | nginx_plus | 1.29.2 ≤ 𝑥 < 1.31.6 | CNA |
| f5 | nginx_plus | 1.30.4 ≤ 𝑥 < 1.30.5 | CNA |