CriticalCritical vulnerability

CVE-2026-82973 (CVSS 9.4)

NVD · officialPublished Sep 29, 2026Risk 50/100

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.

Technical details

CVSS

9.4

AV:NetworkAC:LowPR:NoneUI:NoneC:LowI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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