Review reviewHigh

CVE-2026-22860

rack rack, Logging Subsystem for Red Hat OpenShift, Red Hat 3scale API Management Platform 2

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.

CVSS: 7.5
EPSS: 0.66%
CISA KEV: Not listed
Published: 2026.02.19

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.66%

Technical severityCVSS 7.5

Vulnerability overview

Affected product and versions

Product: rack rack, Logging Subsystem for Red Hat OpenShift, Red Hat 3scale API Management Platform 2
Affected versions: >= < 2.2.22, >= >= 3.0.0.beta1, < 3.1.20, >= >= 3.2.0, < 3.2.5, < 2.2.22, >= 3.0.0 < 3.1.20, >= 3.2.0 < 3.2.5
Fixed versions: 2.2.22, 3.1.20, 3.2.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that rack rack, Logging Subsystem for Red Hat OpenShift, Red Hat 3scale API Management Platform 2 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-22, CWE-548