Description
The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.
Published: 2026-01-20
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4455-1 python3.9 security update
Debian DLA Debian DLA DLA-4532-1 python3.9 regression and security update
Ubuntu USN Ubuntu USN USN-8018-1 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-8018-2 Python regression
History

Thu, 26 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 22 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}

threat_severity

Moderate


Wed, 21 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Jan 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Python
Python cpython
Vendors & Products Python
Python cpython

Tue, 20 Jan 2026 22:45:00 +0000


Tue, 20 Jan 2026 22:00:00 +0000


Tue, 20 Jan 2026 21:45:00 +0000

Type Values Removed Values Added
Description The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.
Title IMAP command injection in user-controlled commands
Weaknesses CWE-77
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: PSF

Published:

Updated: 2026-02-26T14:44:41.682Z

Reserved: 2025-12-30T16:06:41.731Z

Link: CVE-2025-15366

cve-icon Vulnrichment

Updated: 2026-01-21T15:48:30.529Z

cve-icon NVD

Status : Deferred

Published: 2026-01-20T22:15:51.023

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-15366

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-01-20T21:40:24Z

Links: CVE-2025-15366 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-21T11:18:55Z

Weaknesses