7.5

CVE-2026-34785

Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static determines whether a request should be served as a static file using a simple string prefix check. When configured with URL prefixes such as "/css", it matches any request path that begins with that string, including unrelated paths such as "/css-config.env" or "/css-backup.sql". As a result, files under the static root whose names merely share the configured prefix may be served unintentionally, leading to information disclosure. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Rack ≫ Rack SwPlatformruby Version < 2.2.23
Rack ≫ Rack SwPlatformruby Version >= 3.0.0 < 3.1.21
Rack ≫ Rack SwPlatformruby Version >= 3.2.0 < 3.2.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.306
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-187 Partial String Comparison

The product performs a comparison that only examines a portion of a factor before determining whether there is a match, such as a substring, leading to resultant weaknesses.

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CWE-552 Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

https://github.com/rack/rack/security/advisories/GHSA-h2jq-g4cq-5ppq
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-34785
https://bugzilla.redhat.com/show_bug.cgi?id=2454486
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34785.json