{"id":"GHSA-rxj3-rrwm-pj4r","summary":"Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler","details":"An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.","aliases":["CVE-2026-35537"],"modified":"2026-04-14T22:20:49.698656Z","published":"2026-04-03T06:31:32Z","database_specific":{"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-04-04T06:50:14Z","nvd_published_at":"2026-04-03T04:17:10Z","cwe_ids":["CWE-502"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35537"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620"},{"type":"PACKAGE","url":"https://github.com/roundcube/roundcubemail"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.14"},{"type":"WEB","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5"},{"type":"WEB","url":"https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/11/6"}],"affected":[{"package":{"name":"roundcube/roundcubemail","ecosystem":"Packagist","purl":"pkg:composer/roundcube/roundcubemail"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.7-beta"},{"fixed":"1.7-rc5"}]}],"versions":["1.7-beta","1.7-beta2","1.7-rc","1.7-rc2","1.7-rc3","1.7-rc4"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rxj3-rrwm-pj4r/GHSA-rxj3-rrwm-pj4r.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}