CVE-2026-48780
HIGH
NVD
CVSS Score
8.2
Severity
HIGH
Published
Jun 16, 2026
Vendor
unknown
Description
Forem is open source software for building communities. Prior to commit a2ab6d4, a maliciously crafted email address could allow an attacker to bypass domain allowlist or denylist restrictions and gain access to invite-only forem deployments. The issue is patched as of `a2ab6d4`. As a workaround, some SMTP servers and email delivery providers may drop or refuse to send maliciously crafted email addresses.