High 7.5Published Feb 18, 2026

CVE-2026-22860Rack has a Directory Traversal via Rack:Directory

Updated under an hour ago (Oct 27, 2026, 10:20 AM ET)

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It affects rack and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for rack

Exploited in the last 30 days

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 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22, CWE-548
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rack rack rack:rack (from the name)	before 2.2.22; from 3.0.0.beta1, < 3.1.20; from 3.2.0, < 3.2.5	CNA record
Red Hat Logging Subsystem for Red Hat OpenShift redhat:logging	5	CISA ADP
Red Hat Red Hat 3scale API Management Platform 2 redhat:red_hat_3scale_amp	2	CISA ADP
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	10	CISA ADP
rack rack rack:rack	before 2.2.22; from 3.0.0 before 3.1.20; from 3.2.0 before 3.2.5	NVD

References

References

https://github.com/rack/rack/security/advisories/GHSA-mxw3-3hh2-x2mh	x-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/rack/rack/commit/75c5745c286637a8f049a33790c71237762069e7	x-refsource-misc, patch
https://access.redhat.com/security/cve/CVE-2026-22860
https://bugzilla.redhat.com/show_bug.cgi?id=2440737
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22860.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.