CVE-2026-72783

Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the Local file system class’s ensurePathIsContained function. The vulnerability stems from validating the path before normalization, creating a desanitization-style ...

CVE-2026-72783 Craft CMS 5.0.0-RC1 before 5.10.6 Path Traversal via ensurePathIsContained

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

CVE-2026-72783 Craft CMS 5.0.0-RC1 before 5.10.6 Path Traversal via ensurePathIsContained

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

CVE-2026-72783 Craft CMS 5.0.0-RC1 before 5.10.6 Path Traversal via ensurePathIsContained

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

EUVD-2026-56107

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

CVE-2026-72783

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

CVE-2026-72783: Improper Limitation of a Pathname to a Restricted Directory

Craft CMS versions = 5.0.0-RC1 before 5.10.6 and = 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior...

PT-2026-70201

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.0.0-RC1 through 5.10.5 Craft CMS versions 4.0.0-RC1 through 4.18.1 Description A theoretical path traversal weakness exists in the ensurePathIsContained function of the Local file system class. The issue arises because the...

PT-2026-75942

The ensurePathIsContained function of the Local file system class is theoretically vulnerable to path traversal, although no exploitable scenario has been discovered. When a file is read, an Asset object uses the getFileStream method of the Volume where the asset file is stored, which in turn use...