CVE-2026-42926 (GCVE-0-2026-42926)

Vulnerability from cvelistv5 – Published: 2026-05-13 14:12 – Updated: 2026-05-13 16:16
VLAI
Title
NGINX ngx_http_proxy_v2_module vulnerability
Summary
When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to inject frame headers and payload bytes to the upstream peer.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 15:54 UTC
CWE
Assigner
f5
References
URL Tags
https://my.f5.com/manage/s/article/K000161131 vendor-advisorypatch
Impacted products
Vendor Product Version
F5 NGINX Open Source Unaffected: 1.31.0 , < * (semver)
Affected: 1.29.4 , < 1.30.1 (semver)
Create a notification for this product.
Date Public
2026-05-13 14:00
Show details on NVD website

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