CVE-2026-114723
CVE-2026-114723
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: mitreFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: mitreFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: mitreFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: mitreAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Webmail Roundcube Platforms: Linux, MacOS |
≥ 1.6.0; < 1.6.20 (affected, semver) ≥ 1.7.0; < 1.7.5 (affected, semver) Other versions: unaffected |
CNA: mitre |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 3.7 low |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | CNA: mitre |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://bugs.debian.org/1151279CNA: mitre · issue-tracking, third-party-advisory
- https://github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cfCNA: mitre · patch
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5CNA: mitre · vendor-advisory, release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5CNA: mitre · release-notes, patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20CNA: mitre · release-notes, patch
- https://github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33fCNA: mitre · patch
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