{"schemaVersion":3,"id":"USN-8931-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"apache2 vulnerabilities\n\n이지웅 discovered that Apache HTTP Server exposed WebDAV property information.\nA remote attacker could possibly use this issue to obtain sensitive\ninformation. (CVE-2026-58415)\n\nZhen Kong and Charles Vosburgh discovered that Apache HTTP Server did not\nproperly validate FTP server responses. A remote attacker could possibly\nuse this issue to make a forward proxy connect to an arbitrary host.\n(CVE-2026-63045)\n\nHyojae Lee and Zhen Kong discovered that Apache HTTP Server incorrectly\nhandled certain HTTP requests. A remote attacker could possibly use this\nissue to cause a denial of service or execute arbitrary code.\n(CVE-2026-63292)\n\nLucian Nitescu and Zhen Kong discovered that Apache HTTP Server did not\nproperly handle certain responses from backend servers. A remote attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2026-63686)\n\nQing Xu discovered that Apache HTTP Server incorrectly interpreted HTTP\nresponses from backend servers. A remote attacker could possibly use this\nissue to perform HTTP response smuggling attacks. This issue only affected\nUbuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS.\n(CVE-2026-63718)\n\nHyojae Lee discovered that Apache HTTP Server did not properly validate\nDigest authentication requests. A machine-in-the-middle attacker could\npossibly use this issue to bypass authentication. (CVE-2026-73636)\n\nZhen Kong and Darren Carreras discovered that Apache HTTP Server did not\nproperly manage authentication requests. A remote attacker could possibly\nuse this issue to cause a denial of service. (CVE-2026-73637)\n\nVlatko Kosturjak discovered that Apache HTTP Server did not properly\nenforce access restrictions for user directories. A remote attacker could\npossibly use this issue to obtain sensitive information. (CVE-2026-79768)\n\nZhen Kong discovered that Apache HTTP Server did not properly handle\ncertain WebDAV requests. An authenticated user could possibly use this\nissue to cause a denial of service or corrupt WebDAV property data.\n(CVE-2026-93546)","dates":{"published":"2026-10-14T18:21:58.000Z","modified":"2026-10-17T13:11:54.285Z","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":"ubuntu","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/apache2","purlType":"deb","versions":[{"text":"< 2.4.7-1ubuntu4.22+esm17","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.18-2ubuntu3.17+esm22","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.29-1ubuntu4.27+esm13","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.41-4ubuntu3.23+esm9","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.52-1ubuntu4.25","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.58-1ubuntu8.17","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.66-2ubuntu2.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.7-1ubuntu4.22+esm17 | < 2.4.18-2ubuntu3.17+esm22 | < 2.4.29-1ubuntu4.27+esm13 | < 2.4.41-4ubuntu3.23+esm9 | < 2.4.52-1ubuntu4.25 | < 2.4.58-1ubuntu8.17 | < 2.4.66-2ubuntu2.6","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8931-1","label":"ubuntu.com/security/notices/USN-8931-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-58415","label":"ubuntu.com/security/CVE-2026-58415","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63045","label":"ubuntu.com/security/CVE-2026-63045","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63292","label":"ubuntu.com/security/CVE-2026-63292","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63686","label":"ubuntu.com/security/CVE-2026-63686","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63718","label":"ubuntu.com/security/CVE-2026-63718","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-73636","label":"ubuntu.com/security/CVE-2026-73636","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-73637","label":"ubuntu.com/security/CVE-2026-73637","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-79768","label":"ubuntu.com/security/CVE-2026-79768","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-93546","label":"ubuntu.com/security/CVE-2026-93546","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-58415","CVE-2026-63045","CVE-2026-63292","CVE-2026-63686","CVE-2026-63718","CVE-2026-73636","CVE-2026-73637","CVE-2026-79768","CVE-2026-93546"],"downstream":[],"duplicates":[],"related":["CVE-2026-58415","CVE-2026-63045","CVE-2026-63292","CVE-2026-63686","CVE-2026-63718","CVE-2026-73636","CVE-2026-73637","CVE-2026-79768","CVE-2026-93546"]},"timeline":[{"kind":"published","date":"2026-10-14T18:21:58.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-17T13:11:54.285Z","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":"2026-10-19T08:21:22.375Z","stale":false,"partial":false}}