{"id":"BIT-nginx-2026-48142","summary":"NGINX ngx_http_charset_module vulnerability","details":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When content is served or proxied through a location block with both source_charset utf-8; and a charset directive (for example, charset koi8-r;) configured, remote, unauthenticated attackers can send requests (in conjunction with conditions beyond their control) to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","aliases":["BIT-nginx-gateway-2026-48142","BIT-nginx-gateway-fabric-2026-48142","CVE-2026-48142"],"modified":"2026-09-08T08:47:44.479604053Z","published":"2026-06-22T05:47:07.939Z","database_specific":{"cpes":["cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://my.f5.com/manage/s/article/K000161585"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48142"}],"affected":[{"package":{"name":"nginx","ecosystem":"Bitnami","purl":"pkg:bitnami/nginx"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"fixed":"1.30.3"},{"introduced":"1.31.0"},{"fixed":"1.31.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nginx/BIT-nginx-2026-48142.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/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"}