roundcube: Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 allows the ImageMagick resource limits to be bypassed during t...
CVE-2026-114723 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-114723, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| roundcube · Debian 13.5 (trixie) | 1.6.20+dfsg-0+deb13u1 | DEBIAN-CVE-2026-114723 | Oct 24, 2026 |
| roundcube · Debian 14 | 1.6.20+dfsg-1 | DEBIAN-CVE-2026-114723 | Oct 24, 2026 |
| roundcubemail · Fedora 43 | 1.6.20-1.fc43 | FEDORA-2026-DB7E033531 | Nov 7, 2026 |
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