HIGH

CVE-2026-22860

CVSS v3

7.5

HIGH

EPSS Score

0.8 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

rackRubyGemsfrom 3.2.0 · fixed in 3.2.5

Vendor advisories

CVE-2026-22860 Red Hat Product Security25 known affected
rubygem-rack: Rack Directory Traversal via Rack:Directory
3scale-amp2/backend-rhel7 as a component of Red Hat 3scale API Management Platform 2 · 3scale-amp2/backend-rhel8 as a component of Red Hat 3scale API Management Platform 2 · 3scale-amp2/system-rhel7 as a component of Red Hat 3scale API Management Platform 2

Full record on NVD

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2026-02-18
Last Modified: 2026-02-19

Frequently asked questions

What is CVE-2026-22860?

Is CVE-2026-22860 actively exploited?

Active exploitation of CVE-2026-22860 has not been confirmed. Its EPSS score was 0.8% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-22860?

CVE-2026-22860 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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