CVE-2026-88859

Description

A flaw was found in Evolution. A remote attacker can exploit this vulnerability by sending a specially crafted HTML email containing a spoofed vCard control. When a victim clicks on this control, Evolution's trusted JavaScript handler incorrectly assigns an attacker-controlled JavaScript URL to an iframe's source. This action leads to arbitrary JavaScript execution within the mail-viewing context, effectively bypassing the security measures designed to prevent script execution in email content.

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Produits concernés

• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9

Scores CVSS

Faiblesses (CWE)

• CWE-84

Références

• https://access.redhat.com/security/cve/CVE-2026-88859
• https://bugzilla.redhat.com/show_bug.cgi?id=2531401
• https://gitlab.gnome.org/GNOME/evolution/-/work_items/3388

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories