{"schemaVersion":3,"id":"MGASA-2026-0301","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated nginx packages fix security vulnerabilities\n\nCVE-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.","dates":{"published":"2026-07-27T22:45:13.000Z","modified":"2026-07-27T23:00:05.899Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"nginx","name":"nginx","label":"nginx","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/nginx","purlType":"rpm","versions":[{"text":"< 1.30.4-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.30.4-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"nginx","name":"nginx","label":"nginx","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/nginx","purlType":"rpm","versions":[{"text":"< 1.30.4-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.30.4-1.mga9","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0301.html","label":"advisories.mageia.org/MGASA-2026-0301.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35973","label":"bugs.mageia.org/show_bug.cgi?id=35973","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://my.f5.com/manage/s/article/K000162097","label":"my.f5.com/manage/s/article/K000162097","hostname":"my.f5.com","tags":["WEB"]},{"url":"https://my.f5.com/manage/s/article/K000162100","label":"my.f5.com/manage/s/article/K000162100","hostname":"my.f5.com","tags":["WEB"]},{"url":"https://my.f5.com/manage/s/article/K000162098","label":"my.f5.com/manage/s/article/K000162098","hostname":"my.f5.com","tags":["WEB"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/LIWPH3EULRVLC6TMLBZYPJ5IKQGVF6C2/","label":"lists.opensuse.org/archives/…","hostname":"lists.opensuse.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-42533","CVE-2026-56434","CVE-2026-60005"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-27T22:45:13.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-27T23:00:05.899Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T22:26:34.335Z","stale":false,"partial":false}}