Medium severity5.8NVD Advisory· Published May 13, 2026· Updated Jun 18, 2026
CVE-2026-42926
CVE-2026-42926
Description
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.
Affected products
8- osv-coords7 versionspkg:apk/chainguard/nginx-mainlinepkg:apk/chainguard/nginx-stablepkg:apk/wolfi/nginx-mainlinepkg:apk/wolfi/nginx-stablepkg:bitnami/nginxpkg:bitnami/nginx-gatewaypkg:rpm/opensuse/nginx&distro=openSUSE%20Tumbleweed
< 1.31.0-r0+ 6 more
- (no CPE)range: < 1.31.0-r0
- (no CPE)range: < 1.30.1-r0
- (no CPE)range: < 1.31.0-r0
- (no CPE)range: < 1.30.1-r0
- (no CPE)range: >= 1.29.4, < 1.30.1
- (no CPE)range: >= 1.29.4, < 1.30.1
- (no CPE)range: < 1.31.0-1.1
Patches
Vulnerability mechanics
References
1- my.f5.com/manage/s/article/K000161131nvdMitigationVendor Advisory
News mentions
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