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CVE-2025-15366

IMAP command injection in user-controlled commands

Published: Jan 20, 2026Updated: Jan 26, 2026 Sources: CVE List NVD BDUCWE-77
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.3%
Top 77.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.

CVSS Vector Breakdown

AV:NAC:LC:NI:LA:H
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:NConfidentiality
None
I:LIntegrity
L
A:HAvailability
H
Open in CVSS calculator →

Weaknesses

CWE-77

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
OpenShift Dev SpacesRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / container-orchestration
OpenShift AIRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / saas-application
Red Hat Ceph StorageRed Hat Inc.
On-premDatabase
Databases / cache-message-queue
PythonPython Software FoundationOSS Libraries
red hat inc.commercialUSOperating Systemsaka red hat
python software foundationoss-projectUSOSS Librariesaka python software foundation, psf
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/python/cpython/commit/6262704b134db2a4ba12e85ecfbd968534f28b45
github.com
https://github.com/python/cpython/issues/143921
github.com
https://github.com/python/cpython/pull/143922
github.com
and 3 more references View all →

Timeline

Published
Jan 20, 2026
Last Updated
Jan 26, 2026

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