{"action":"Upgrade roundcube/roundcubemail to 1.7-rc5 or later.","affected":[{"fixed":"1.7-rc5","introduced":"1.7-beta"}],"component":"roundcube/roundcubemail","cve_ids":["CVE-2026-35537"],"ecosystem":"Packagist","epss":0.00482,"exploited":false,"fixed_versions":["1.7-rc5"],"ghsa_id":"GHSA-rxj3-rrwm-pj4r","id":"tcs_01M5KF8NPT8N3KWBMQSPSY0TR4","modified_at":"2026-04-14T22:20:49.698656Z","published_at":"2026-04-03T06:31:32Z","references":["https://osv.dev/vulnerability/GHSA-rxj3-rrwm-pj4r","https://nvd.nist.gov/vuln/detail/CVE-2026-35537","https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3","https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74","https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620","https://github.com/roundcube/roundcubemail","https://github.com/roundcube/roundcubemail/releases/tag/1.5.14","https://github.com/roundcube/roundcubemail/releases/tag/1.6.14","https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5","https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14","http://www.openwall.com/lists/oss-security/2026/04/11/6"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"GHSA-rxj3-rrwm-pj4r","url":"https://osv.dev/vulnerability/GHSA-rxj3-rrwm-pj4r"}],"summary":"Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler"}