cvedb.io
CVE-2026-42530
HIGH · CVSS 8.1
EPSS exploitation probability: 0%
Published 2026-06-17T15:16:50.630 · Last modified 2026-07-02T20:03:41.113

Summary

NGINX Open Source has a vulnerability in the ngx_http_v3_module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This may cause a Use-after-Free in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

f5 — nginx_gateway_fabric

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.