{"schemaVersion":3,"id":"USN-8898-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"apache2 vulnerabilities\n\nIt was discovered that Apache HTTP Server's mod_rewrite module incorrectly\nhandled memory when performing certain variable lookups. A remote attacker\ncould possibly use this issue to cause a denial of service or execute\narbitrary code. (CVE-2026-56154)\n\nLucian Nitescu, Simon Kappel, and Gianluca Danesin discovered that Apache\nHTTP Server's mod_http2 module incorrectly handled memory when processing\ncertain HTTP/2 connections. A remote attacker could possibly use this issue\nto cause a denial of service or execute arbitrary code. This issue only\naffected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04\nLTS, and Ubuntu 26.04 LTS. (CVE-2026-57941)\n\nJuthawong Naisanguansee, Charles Vosburgh, Mike Read, and Ryoma Nishioka\ndiscovered that Apache HTTP Server's mod_ssl module incorrectly handled\ncertain expressions. An attacker could possibly use this issue to bypass\nintended access restrictions. (CVE-2026-59797)","dates":{"published":"2026-10-07T17:35:35.000Z","modified":"2026-10-09T01:57:54.909Z","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+esm16","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.18-2ubuntu3.17+esm21","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.29-1ubuntu4.27+esm12","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.41-4ubuntu3.23+esm8","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.52-1ubuntu4.24","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.58-1ubuntu8.16","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.66-2ubuntu2.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.7-1ubuntu4.22+esm16 | < 2.4.18-2ubuntu3.17+esm21 | < 2.4.29-1ubuntu4.27+esm12 | < 2.4.41-4ubuntu3.23+esm8 | < 2.4.52-1ubuntu4.24 | < 2.4.58-1ubuntu8.16 | < 2.4.66-2ubuntu2.5","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8898-1","label":"ubuntu.com/security/notices/USN-8898-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-56154","label":"ubuntu.com/security/CVE-2026-56154","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-57941","label":"ubuntu.com/security/CVE-2026-57941","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-59797","label":"ubuntu.com/security/CVE-2026-59797","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-56154","CVE-2026-57941","CVE-2026-59797"],"downstream":[],"duplicates":[],"related":["CVE-2026-56154","CVE-2026-57941","CVE-2026-59797"]},"timeline":[{"kind":"published","date":"2026-10-07T17:35:35.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-09T01:57:54.909Z","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":"2026-10-20T19:16:58.154Z","stale":false,"partial":false}}