CVE-2026-22860

Severity CVSS v4.0:

Pending analysis

Type:

CWE-22 Path Traversal

Publication date:

18/02/2026

Last modified:

19/02/2026

Description

Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory`’s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root. Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:rack:rack::::::ruby::*		2.2.22 (excluding)
cpe:2.3:a:rack:rack::::::ruby::*	3.0.0 (including)	3.1.20 (excluding)
cpe:2.3:a:rack:rack::::::ruby::*	3.2.0 (including)	3.2.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-22860

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools