CVE-2026-48846
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() value in an e-mail message, which may lead to information disclosure or access-control bypass.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
Roundcube · WebmailReferences
https://github.com/roundcube/roundcubemail/commit/59cca80908a61e662c5f81741449e9aeb91e8abehttps://github.com/roundcube/roundcubemail/commit/852350486b88b35b8544e8a630fad89e99e2150ahttps://github.com/roundcube/roundcubemail/releases/tag/1.6.16https://github.com/roundcube/roundcubemail/releases/tag/1.7.1https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1