Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 allows the ImageMagick resource limits to be bypassed during thumbnail generation. When rcube_image falls back to GD, the available-memory check was applied only on Windows, so on other platforms a crafted image with large dimensions was processed by GD without any resource limit and could exhaust server memory. Upstream fixed this in the commit “Fix ImageMagick resource limits bypass by GD fallback during thumbnail generation”, which applies the memory check on all platforms.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusUndergoing Analysis → PublishedNVD modified 2026-10-22 01:44
- StatusPublished → Undergoing AnalysisNVD modified 2026-10-22 16:45
- StatusReceived → PublishedNVD modified 2026-10-22 01:44
- StatusPublished → ReceivedNVD modified 2026-10-22 02:17
- First seenCVSS 3.7 · roundcubeNVD modified 2026-10-22 01:44
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://bugs.debian.org/1151279
- https://github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33f
- https://github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cf
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5