CVE-2026-22860

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/18/2026

Last Modified2/19/2026

Sourcenvd

Honeypot Sightings0

Affected Products

rack:rack

Weaknesses (CWE)

CWE-22CWE-548

References

https://github.com/rack/rack/commit/75c5745c286637a8f049a33790c71237762069e7(security-advisories@github.com)

https://github.com/rack/rack/security/advisories/GHSA-mxw3-3hh2-x2mh(security-advisories@github.com)

IOC Correlations

No correlations recorded

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