Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/forem/forem/commit/a2ab6d409d2676eb0711ecbd737192043125b437
- https://github.com/forem/forem/security/advisories/GHSA-3g4h-9h37-mpx6
FAQ
What is CVE-2026-48780?
CVE-2026-48780 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 gai...
How severe is CVE-2026-48780?
CVE-2026-48780 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-48780?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.