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High severity7.8NVD Advisory· Published Apr 14, 2026· Updated Apr 27, 2026

CVE-2026-26143

CVE-2026-26143

Description

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

Affected products

3

Microsoft/Powershell2 versions
cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*range: >=7.4,<7.4.14
- (no CPE)
osv-coords
pkg:bitnami/powershell
Range: >= 7.4.0, < 7.4.14

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26143nvdVendor Advisory

News mentions

1

Patch Tuesday - April 2026
Rapid7 Blog · Apr 14, 2026