CVE-2026-35542 in Webmail
Summary
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass.
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Responsible
MITRE
Reservation
04/03/2026
Disclosure
04/03/2026
Status
Confirmed
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 355056 | Roundcube Webmail BODY Element resource transfer | 669 | Not defined | Official fix | CVE-2026-35542 |