CVE-2026-90955

MISP CLI Shell Audit Logs Lose User Identity and CLI Marker After First Lazy Model Load

MEDIUM
4.6
CVSS Score
Published: September 14, 2026 at 12:37 PM UTC
Updated: September 16, 2026 at 01:57 PM UTC
1 product affected across 1 vendorMISP

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Affected versions of MISP’s interactive CLI shell do not reliably preserve the identity of the impersonated MISP user across audit logging. The shell is designed to run actions as a supplied MISP user ID. However, the legacy SysLogLogable behavior stored that identity in behavior-instance state that could be overwritten when another model lazily attached the shared behavior. Consequently, subsequent CLI writes could lose the intended user attribution and be logged incorrectly. The commit also notes that CLI-originated records lacked a CLI marker, making them appear similar to ordinary web actions by that user. Version affected: ≤2.5.45

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5.46
Affected range stops below 2.5.46, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.6MEDIUMCIRCL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-778CWE-223

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