CVE-2026-82973: CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection') in psyb0t docker-mailbox
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.
AI Analysis
Technical Summary
The vulnerability CVE-2026-82973 in psyb0t/docker-mailbox (versions >=0.1.0 <=0.4.12) is due to improper neutralization of CRLF sequences (CWE-93) in IMAP command construction. This flaw allows a remote unauthenticated attacker to inject additional IMAP commands into an authenticated upstream mailbox connection by crafting folder, UID, or search values. The attack surface is exposed when bearer-token authentication is not configured, enabling command injection through IMAP protocol manipulation.
Potential Impact
An attacker can remotely inject arbitrary IMAP commands into an authenticated mailbox connection, potentially leading to high impact including integrity and availability compromise of the mailbox service. The CVSS 3.1 score is 9.4 (critical), reflecting network attack vector, no privileges required, no user interaction, and high impact on integrity and availability.
Mitigation Recommendations
A fixed version 0.4.13 or later should be applied to remediate this vulnerability. Since no patch links are provided in the input, check the vendor's official advisory or repository for the availability of the official fix. If bearer-token authentication is configured, the attack vector is mitigated. Until patched, configuring bearer-token authentication may reduce exposure.
CVE-2026-82973: CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection') in psyb0t docker-mailbox
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.
CVSS v3.1
Score 9.4critical
Affected software
psyb0t
docker-mailbox
pkg:github/psyb0t/docker-mailboxRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-82973 in psyb0t/docker-mailbox (versions >=0.1.0 <=0.4.12) is due to improper neutralization of CRLF sequences (CWE-93) in IMAP command construction. This flaw allows a remote unauthenticated attacker to inject additional IMAP commands into an authenticated upstream mailbox connection by crafting folder, UID, or search values. The attack surface is exposed when bearer-token authentication is not configured, enabling command injection through IMAP protocol manipulation.
Potential Impact
An attacker can remotely inject arbitrary IMAP commands into an authenticated mailbox connection, potentially leading to high impact including integrity and availability compromise of the mailbox service. The CVSS 3.1 score is 9.4 (critical), reflecting network attack vector, no privileges required, no user interaction, and high impact on integrity and availability.
Mitigation Recommendations
A fixed version 0.4.13 or later should be applied to remediate this vulnerability. Since no patch links are provided in the input, check the vendor's official advisory or repository for the availability of the official fix. If bearer-token authentication is configured, the attack vector is mitigated. Until patched, configuring bearer-token authentication may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-08-31T14:31:02.749Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abbb034f7a7c541065fdf7e
Added to database: 09/29/2026, 12:33:56 UTC
Last enriched: 09/29/2026, 12:47:41 UTC
Last updated: 09/29/2026, 18:20:13 UTC
Views: 18
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