{"id":"MGASA-2026-0301","summary":"Updated nginx packages fix security vulnerabilities","details":"CVE-2026-42533:\nHeap buffer overflow might occur in a worker process when using the map\ndirective with regex matching if the map variable was included in a\nstring expression after a capture affected by this map; a similar issue\nmight happen when using a non-cacheable variable in a\nstring expression.\nThanks to Mufeed VH of Winfunc Research and Maxim Dounin.\n.\nCVE-2026-60005:\nUninitialized memory access might occur when using unnamed regex\ncaptures with the \"slice\" directive or background cache update, which\ncould result in worker process memory disclosure or worker process\ntermination.\n.\nCVE-2026-56434:\nUse-after-free might occur when processing a specially crafted proxied\nbackend response with the ngx_http_ssi_filter_module.\nThanks to P4P3R-HAK.\n","modified":"2026-07-27T23:00:05.899586278Z","published":"2026-07-27T22:45:13Z","upstream":["CVE-2026-42533","CVE-2026-56434","CVE-2026-60005"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0301.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35973"},{"type":"WEB","url":"https://my.f5.com/manage/s/article/K000162097"},{"type":"WEB","url":"https://my.f5.com/manage/s/article/K000162100"},{"type":"WEB","url":"https://my.f5.com/manage/s/article/K000162098"},{"type":"WEB","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/LIWPH3EULRVLC6TMLBZYPJ5IKQGVF6C2/"}],"affected":[{"package":{"name":"nginx","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/nginx?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30.4-1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0301.json"}},{"package":{"name":"nginx","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/nginx?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30.4-1.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0301.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}