CVE-2026-48780

Published: Jun 16, 2026Modified: Jun 17, 2026Deferred

8.2

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitability: 3.9 / Impact: 4.2

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (2)

https://github.com/forem/forem/commit/a2ab6d409d2676eb0711ecbd737192043125b437

Source: security-advisories@github.com

https://github.com/forem/forem/security/advisories/GHSA-3g4h-9h37-mpx6

Source: security-advisories@github.com

Timeline

No history available yet.