Vulnerability · Published Sep 29, 2026 · Assigned by GitLab
CVE-2026-82973Improper Neutralization of CRLF Sequences ('CRLF Injection') in docker-mailbox
Critical 9.4
In plain English
A critical-severity security flaw in docker-mailbox from psyb0t. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)9.4Critical
Exploit odds (30 days)0.4%top 63.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| psyb0t | docker-mailbox | 0.1.0 – through 0.4.12 |
Weakness: CWE-93 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H