CVE-2026-114723: Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 allows the ImageMagick resource limits to be
Source GCVE Database
Not known to be exploited · CVSS 3.7 Low : upgrade to 1.7.5 or 1.6.20 when convenient.
Data as of 2 Nov 2026, 22:58 UTC
Thin evidence
One scorer or none| CNA (mitre) | CVSS 3.1 | 3.7 |
|---|
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.7.5, 1.6.20
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade Webmail to 1.7.5 or 1.6.20.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| RoundcubeWebmail | Affected
| Fixed in
|
| RoundcubeWebmail | Affected
| Fixed in
|
GitHubWebmailpkg:github/WebmailOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-114723 (opens in a new tab)
- github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33f (opens in a new tab)
- github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cf (opens in a new tab)
- bugs.debian.org/1151279 (opens in a new tab)
- github.com/roundcube/roundcubemail/releases/tag/1.6.20 (opens in a new tab)
- github.com/roundcube/roundcubemail/releases/tag/1.7.5 (opens in a new tab)
- roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 (opens in a new tab)