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CVE-2026-90439

Estado: Pendiente de análisisMedia (6.9)—

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.

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Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Nginx — Nginx Open SourceAINginx — Nginx PlusAIOpenssl — OpensslAI

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-90439",
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          "options": [
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      "url": "https://my.f5.com/manage/s/article/K000162604",
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    }
  ],
  "lastModified": "2026-09-18T19:34:36.657",
  "sourceIdentifier": "f5sirt@f5.com"
}