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CVE-2026-90439

NGINX ngx_http_v3_module vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 37.1.1.2, 37.0.6.2, 1.31.6, 1.30.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • F5 NGINX Plus

    From 37.1.0.1 · fixed in 37.1.1.2; From 37.0.0.1 · fixed in 37.0.6.2

  • F5 NGINX Open Source

    From 1.29.2 · fixed in 1.31.6; From 1.30.4 · fixed in 1.30.5

References 1

my.f5.com