What is CVE-2026-35541?

CVE-2026-35541 is a medium-severity vulnerability in Roundcube Webmail, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 4.2/10. Published 2026-04-03.

How severe is CVE-2026-35541?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Roundcube Webmail

CVE-2026-35541

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.

EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Roundcube Webmail — versions 0, 1.6.0

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Release Notes)
cve@mitre.org (Patch)
cve@mitre.org (Release Notes)
cve@mitre.org (Patch)
cve@mitre.org (Release Notes)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2026-35541?: CVE-2026-35541 is a medium-severity vulnerability in Roundcube Webmail, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 4.2/10. Published 2026-04-03.
How severe is CVE-2026-35541?: Medium severity. CVSS v3 base score is 4.2 out of 10.