{"id":"AZL-86853","summary":"CVE-2026-42934 affecting package nginx for versions less than 1.28.3-4","details":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering (\"off\") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart.\n\n\n\n Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","modified":"2026-09-20T05:33:47Z","published":"2026-05-13T16:16:49Z","upstream":["CVE-2026-42934"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42934"}],"affected":[{"package":{"name":"nginx","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/nginx"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.28.3-4"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86853.json"}}],"schema_version":"1.9.0"}