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CVE-2026-82973— Improper Neutralization of CRLF Sequences ('CRLF Injection') in docker-mailbox

Quick assessment

Affected
psyb0t docker-mailbox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 9.4 · Critical
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I. Basic Information for CVE-2026-82973

Vulnerability Information

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Vulnerability Title
Improper Neutralization of CRLF Sequences ('CRLF Injection') in docker-mailbox
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
psyb0t docker-mailbox 0.1.0 ~ 0.4.12 -

II. Public POCs for CVE-2026-82973

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III. Intelligence Information for CVE-2026-82973

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Other References for CVE-2026-82973 (1)

IV. Related Vulnerabilities

Same weakness: CWE-93

V. Comments for CVE-2026-82973

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