CVE-2026-48780
Forem vulnerable to bypass of email address domain restrictions
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.2EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
16 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Affected products
forem · forem