{"id":"USN-8830-1","summary":"php-phpseclib vulnerabilities","details":"It was discovered that phpseclib did not perform constant-time padding\nvalidation when using AES in CBC mode. A remote attacker could possibly\nuse this issue to obtain sensitive information. (CVE-2026-32935)\n\nIt was discovered that phpseclib did not use a constant-time comparison\nwhen validating SSH packet authentication codes. A remote attacker could\npossibly use this issue to obtain sensitive information. (CVE-2026-40194)\n\nIt was discovered that phpseclib did not properly limit object identifier\nlengths when parsing ASN.1 data. An attacker could possibly use this issue\nto cause phpseclib to use excessive resources, leading to a denial of\nservice. (CVE-2026-44167)","modified":"2026-09-28T22:57:39.805761921Z","published":"2026-09-28T13:56:03Z","related":["UBUNTU-CVE-2026-32935","UBUNTU-CVE-2026-40194","UBUNTU-CVE-2026-44167"],"upstream":["CVE-2026-32935","CVE-2026-40194","CVE-2026-44167","UBUNTU-CVE-2026-32935","UBUNTU-CVE-2026-40194","UBUNTU-CVE-2026-44167"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8830-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-32935"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-40194"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-44167"}],"affected":[{"package":{"name":"php-phpseclib","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/php-phpseclib?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-1ubuntu0.1~esm1"}]}],"versions":["2.0.1-1","2.0.1-1build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support 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