{"id":"USN-8543-2","aliases":[],"status":"published","title":"wget regression","description":"USN-8543-1 fixed vulnerabilities in Wget. The update for CVE-2026-58472\nwas incomplete and could introduce a regression. This update fixes the\nproblem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that Wget mishandled semicolons in the userinfo\n subcomponent of a URL. A remote attacker could possibly use this issue\n to trick a user into connecting to a different host than intended. This\n issue only affected Ubuntu 14.04 LTS. (CVE-2024-38428)\n\n It was discovered that Wget incorrectly handled Metalink documents\n containing a whitespace-only URL. A remote attacker could possibly use\n this issue to cause a denial of service. This issue only affected Ubuntu\n 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and\n Ubuntu 26.04 LTS. (CVE-2026-58469)\n\n It was discovered that Wget incorrectly handled Content-Range header\n values, leading to an integer overflow. A remote attacker could\n possibly use this issue to cause download desynchronization.\n (CVE-2026-58470)\n\n It was discovered that Wget incorrectly handled character set\n conversion of server-supplied filenames. A remote attacker could\n possibly use this issue to cause a denial of service or possibly execute\n arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04\n LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS.\n (CVE-2026-58471)\n\n It was discovered that Wget incorrectly handled HTML attributes\n requiring entity encoding. A remote attacker could possibly use this\n issue to cause a denial of service or possibly execute arbitrary code.\n (CVE-2026-58472)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-08-20T20:06:13Z","modified":"2026-08-21T04:51:54Z","fixes":[{"ecosystem":"Ubuntu:Pro:14.04:LTS","package":"wget","fixed_in":["1.15-1ubuntu1.14.04.5+esm4"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"wget","fixed_in":["1.17.1-1ubuntu1.5+esm5"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"wget","fixed_in":["1.19.4-1ubuntu2.2+esm5"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"wget","fixed_in":["1.20.3-1ubuntu2.1+esm4"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"wget","fixed_in":["1.21.2-2ubuntu1.5"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"wget","fixed_in":["1.21.4-1ubuntu4.5"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.04:LTS","package":"wget","fixed_in":["1.25.0-2ubuntu4.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15-1ubuntu1.14.04.5+esm4"}]}],"versions":["1.14-2ubuntu1","1.14-5ubuntu1","1.15-1ubuntu1","1.15-1ubuntu1.14.04.1","1.15-1ubuntu1.14.04.2","1.15-1ubuntu1.14.04.3","1.15-1ubuntu1.14.04.4","1.15-1ubuntu1.14.04.5","1.15-1ubuntu1.14.04.5+esm2","1.15-1ubuntu1.14.04.5+esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.1-1ubuntu1.5+esm5"}]}],"versions":["1.16.1-1ubuntu1","1.17.1-1ubuntu1","1.17.1-1ubuntu1.1","1.17.1-1ubuntu1.2","1.17.1-1ubuntu1.3","1.17.1-1ubuntu1.4","1.17.1-1ubuntu1.5","1.17.1-1ubuntu1.5+esm1","1.17.1-1ubuntu1.5+esm3","1.17.1-1ubuntu1.5+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.4-1ubuntu2.2+esm5"}]}],"versions":["1.19.1-3ubuntu1","1.19.1-3ubuntu1.1","1.19.2-1ubuntu1","1.19.3-2ubuntu1","1.19.4-1ubuntu2","1.19.4-1ubuntu2.1","1.19.4-1ubuntu2.2","1.19.4-1ubuntu2.2+esm1","1.19.4-1ubuntu2.2+esm3","1.19.4-1ubuntu2.2+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.3-1ubuntu2.1+esm4"}]}],"versions":["1.20.3-1ubuntu1","1.20.3-1ubuntu2","1.20.3-1ubuntu2.1","1.20.3-1ubuntu2.1+esm2","1.20.3-1ubuntu2.1+esm3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.2-2ubuntu1.5"}]}],"versions":["1.21-1ubuntu3","1.21-1ubuntu4","1.21-1ubuntu5","1.21.2-2ubuntu1","1.21.2-2ubuntu1.1","1.21.2-2ubuntu1.3","1.21.2-2ubuntu1.4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.4-1ubuntu4.5"}]}],"versions":["1.21.3-1ubuntu1","1.21.4-1ubuntu1","1.21.4-1ubuntu2","1.21.4-1ubuntu3","1.21.4-1ubuntu4","1.21.4-1ubuntu4.1","1.21.4-1ubuntu4.3","1.21.4-1ubuntu4.4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"wget","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.25.0-2ubuntu4.4"}]}],"versions":["1.25.0-2ubuntu3","1.25.0-2ubuntu4","1.25.0-2ubuntu4.2","1.25.0-2ubuntu4.3"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-8543-2","tags":["advisory"]},{"url":"https://bugs.launchpad.net/ubuntu/+source/wget/+bug/2163754","tags":["report"]}],"sources":{"osv":[{"id":"USN-8543-2","title":"wget regression","description":"USN-8543-1 fixed vulnerabilities in Wget. The update for CVE-2026-58472\nwas incomplete and could introduce a regression. This update fixes the\nproblem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that Wget mishandled semicolons in the userinfo\n subcomponent of a URL. A remote attacker could possibly use this issue\n to trick a user into connecting to a different host than intended. This\n issue only affected Ubuntu 14.04 LTS. (CVE-2024-38428)\n\n It was discovered that Wget incorrectly handled Metalink documents\n containing a whitespace-only URL. A remote attacker could possibly use\n this issue to cause a denial of service. This issue only affected Ubuntu\n 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and\n Ubuntu 26.04 LTS. (CVE-2026-58469)\n\n It was discovered that Wget incorrectly handled Content-Range header\n values, leading to an integer overflow. A remote attacker could\n possibly use this issue to cause download desynchronization.\n (CVE-2026-58470)\n\n It was discovered that Wget incorrectly handled character set\n conversion of server-supplied filenames. A remote attacker could\n possibly use this issue to cause a denial of service or possibly execute\n arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04\n LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS.\n (CVE-2026-58471)\n\n It was discovered that Wget incorrectly handled HTML attributes\n requiring entity encoding. A remote attacker could possibly use this\n issue to cause a denial of service or possibly execute arbitrary code.\n (CVE-2026-58472)","status":"published","published":"2026-08-20T20:06:13Z","modified":"2026-08-21T04:51:54.022605617Z","updated_at":"2026-11-02T16:58:25.103481Z"}]}}