SB2026021286 - Fedora EPEL 10.2 update for roundcubemail
Published: February 12, 2026 Updated: February 13, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2026-26079)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when handling CSS files. A remote attacker can send a specially crafted email messages and perform CSS injection attacks.
2) Protection mechanism failure (CVE-ID: CVE-2026-25916)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A remote attacker can send a specially crafted email and bypass image blocking via SVG content.
Remediation
Install update from vendor's website.