{"id":"BIT-nginx-2026-42926","summary":"NGINX ngx_http_proxy_v2_module vulnerability","details":"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.","aliases":["BIT-nginx-gateway-2026-42926","CVE-2026-42926"],"modified":"2026-09-08T08:47:44.481496051Z","published":"2026-05-15T08:50:04.510Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://my.f5.com/manage/s/article/K000161131"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42926"}],"affected":[{"package":{"name":"nginx","ecosystem":"Bitnami","purl":"pkg:bitnami/nginx"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.29.4"},{"fixed":"1.30.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nginx/BIT-nginx-2026-42926.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}