Vulnerability · Published Apr 3, 2026 · Assigned by mitre
CVE-2026-35541
Medium 4.2
In plain English
A medium-severity type confusion in Webmail from Roundcube. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.3%top 83.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | roundcube | 1.6.5+dfsg-1+deb12u8 | DEBIAN-CVE-2026-35541 |
| Debian:13 | roundcube | 1.6.15+dfsg-0+deb13u1 | DEBIAN-CVE-2026-35541 |
| Debian:14 | roundcube | 1.6.14+dfsg-1 | DEBIAN-CVE-2026-35541 |
| Packagist | roundcube/roundcubemail | 1.7-rc5 | GHSA-46pv-mj2g-93gh |
| Ubuntu:25.10 | roundcube | no fix listed | UBUNTU-CVE-2026-35541 |
| Ubuntu:26.10 | roundcube | no fix listed | UBUNTU-CVE-2026-35541 |
Affected products (as reported)
Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
References
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
- https://github.com/roundcube/roundcubemail/commit/6a275676a8043083c05c961914d830b79e2490d4
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
- https://github.com/roundcube/roundcubemail/commit/6fa2bddc59b9c9fd31cad4a9e2954a208d793dce
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
- https://github.com/roundcube/roundcubemail/commit/2e6a99b2a38110907ea8d3be8e59ec3d5802c394