CVE-2026-35540

MediumCVSS 6.5/10Last modified Jul 24, 2026

Description

An issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-669

Affected software

No affected versions have been published.

Timeline

Published: Apr 3, 2026
Last modified: Jul 24, 2026
NVD status: Analyzed

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