{"id":"UBUNTU-CVE-2026-35537","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.","modified":"2026-06-30T14:00:18.667121739Z","published":"2026-04-03T04:17:00Z","upstream":["CVE-2026-35537"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-35537"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-35537"},{"type":"REPORT","url":"https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.14"},{"type":"REPORT","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5"}],"affected":[{"package":{"name":"roundcube","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/roundcube?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.1+dfsg.1-2","1.1.2+dfsg.1-5","1.1.3+dfsg.1-1","1.1.4+dfsg.1-1","1.2~beta+dfsg.1-0ubuntu1","1.2~beta+dfsg.1-0ubuntu1+esm1","1.2~beta+dfsg.1-0ubuntu1+esm2","1.2~beta+dfsg.1-0ubuntu1+esm3","1.2~beta+dfsg.1-0ubuntu1+esm4","1.2~beta+dfsg.1-0ubuntu1+esm5","1.2~beta+dfsg.1-0ubuntu1+esm6","1.2~beta+dfsg.1-0ubuntu1+esm7","1.2~beta+dfsg.1-0ubuntu1+esm8"],"ecosystem_specific":{"binaries":[{"binary_name":"roundcube","binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8","binary_name":"roundcube-core"},{"binary_name":"roundcube-mysql","binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8","binary_name":"roundcube-pgsql"},{"binary_name":"roundcube-plugins","binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8"},{"binary_name":"roundcube-sqlite3","binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35537.json"}},{"package":{"name":"roundcube","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/roundcube?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0+dfsg.1-1","1.3.1+dfsg.1-1","1.3.3+dfsg.1-1","1.3.3+dfsg.1-2","1.3.6+dfsg.1-1","1.3.6+dfsg.1-1ubuntu0.1~esm1","1.3.6+dfsg.1-1ubuntu0.1~esm2","1.3.6+dfsg.1-1ubuntu0.1~esm3","1.3.6+dfsg.1-1ubuntu0.1~esm4","1.3.6+dfsg.1-1ubuntu0.1~esm5","1.3.6+dfsg.1-1ubuntu0.1~esm6","1.3.6+dfsg.1-1ubuntu0.1~esm7","1.3.6+dfsg.1-1ubuntu0.1~esm8"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8","binary_name":"roundcube"},{"binary_name":"roundcube-core","binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-mysql","binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-pgsql","binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-plugins","binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-sqlite3","binary_version":"1.3.6+dfsg.1-1ubuntu0.1~esm8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35537.json"}},{"package":{"name":"roundcube","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/roundcube?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.8+dfsg.1-2","1.3.10+dfsg.1-1","1.4.1+dfsg.1-2","1.4.2+dfsg.1-1","1.4.2+dfsg.1-2","1.4.3+dfsg.1-1","1.4.3+dfsg.1-1ubuntu0.1~esm1","1.4.3+dfsg.1-1ubuntu0.1~esm2","1.4.3+dfsg.1-1ubuntu0.1~esm3","1.4.3+dfsg.1-1ubuntu0.1~esm4","1.4.3+dfsg.1-1ubuntu0.1~esm5","1.4.3+dfsg.1-1ubuntu0.1~esm6","1.4.3+dfsg.1-1ubuntu0.1~esm7","1.4.3+dfsg.1-1ubuntu0.1~esm8"],"ecosystem_specific":{"binaries":[{"binary_name":"roundcube","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-core","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-mysql","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-pgsql","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-plugins","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"},{"binary_name":"roundcube-sqlite3","binary_version":"1.4.3+dfsg.1-1ubuntu0.1~esm8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35537.json"}},{"package":{"name":"roundcube","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/roundcube?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11+dfsg.1-4","1.5.0+dfsg.1-2","1.5.0+dfsg.1-2ubuntu0.1~esm1","1.5.0+dfsg.1-2ubuntu0.1~esm2","1.5.0+dfsg.1-2ubuntu0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