Is CVE-2026-82973 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-82973?

CVE-2026-82973 has a CVSS v3 severity of CRITICAL (9.4).

Back

CVE-2026-82973

Description

Improper neutralization of CRLF sequences in IMAP command construction in psyb0t/docker-mailbox before 0.4.13 allows a remote unauthenticated attacker, when bearer-token authentication is not configured, to inject additional IMAP commands into an authenticated upstream mailbox connection via crafted folder, UID, or search values.