{"schemaVersion":3,"id":"USN-8830-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"php-phpseclib vulnerabilities\n\nIt 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)","dates":{"published":"2026-09-28T13:56:03.000Z","modified":"2026-09-28T22:57:39.805Z","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":"php-phpseclib","name":"php-phpseclib","label":"php-phpseclib","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/php-phpseclib","purlType":"deb","versions":[{"text":"< 2.0.1-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.9-1ubuntu0.1~esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.23-2ubuntu0.1~esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.36-1ubuntu0.1~esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.47-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.0.51-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.1-1ubuntu0.1~esm1 | < 2.0.9-1ubuntu0.1~esm3 | < 2.0.23-2ubuntu0.1~esm3 | < 2.0.36-1ubuntu0.1~esm3 | < 2.0.47-1ubuntu0.1~esm1 | < 2.0.51-1ubuntu0.1~esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8830-1","label":"ubuntu.com/security/notices/USN-8830-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-32935","label":"ubuntu.com/security/CVE-2026-32935","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-40194","label":"ubuntu.com/security/CVE-2026-40194","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-44167","label":"ubuntu.com/security/CVE-2026-44167","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-32935","CVE-2026-40194","CVE-2026-44167"],"downstream":[],"duplicates":[],"related":["CVE-2026-32935","CVE-2026-40194","CVE-2026-44167"]},"timeline":[{"kind":"published","date":"2026-09-28T13:56:03.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-28T22:57:39.805Z","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":"2026-10-22T00:11:23.613Z","stale":false,"partial":false}}