CVE-2026-26143: Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.

PriorityP343high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.54%

41.6th percentile

Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
microsoft	powershell	>= 7.4 < 7.4.14	7.4.14
microsoft	powershell	>= 7.5 < 7.5.5	7.5.5
microsoft	powershell_7.4	>= 7.4.0 < 7.4.14	7.4.14
microsoft	powershell_7.5	>= 7.5.0 < 7.5.5	7.5.5

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