Medium severity · published Sep 14, 2026
CVE-2026-90955
MISP CLI Shell Audit Logs Lose User Identity and CLI Marker After First Lazy Model Load
4.6
CVSS
0.2%
EPSS
No
On KEV
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
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
MISP · MISP
before 2.5.46 · source: vendor
Affected product
MI
MISP
MISP
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