CVE•Published 2026-02-18•Modified 2026-06-30•0 articles on news•5 live references•NVD data

CVE-2026-22860Rack · Rack

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

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

EPSS percentile

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Weaknesses (CWE)

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CWE-548Exposure of Information Through Directory Listing

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.

Timeline

Published 2026-02-18

Modified 2026-06-30

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-22860

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Rack Rack"

All exposed Rack Rack instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Rack"

HTTP body or banner mentions "Rack" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-22860