CVE-2026-34785
- Source
- https://cve.org/CVERecord?id=CVE-2026-34785
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34785.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-34785
- Aliases
- Downstream
- Related
- Published
- 2026-04-02T16:44:17.134Z
- Modified
- 2026-04-13T04:27:53.384165Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching
- Details
-
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.
- Database specific
{ "cwe_ids": [ "CWE-187", "CWE-200" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34785.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/rack/rack
Affected ranges
- Type
- GIT
- Repo
- https://github.com/rack/rack
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "2.2.23" }, { "introduced": "3.0.0.beta1" }, { "fixed": "3.1.21" }, { "introduced": "3.2.0" }, { "fixed": "3.2.6" } ], "source": "AFFECTED_FIELD" }
Affected versions
0.*
0.1
0.2
0.3
1.*
1.0
1.3.0
1.3.0.beta
1.3.0.beta2
1.4.0
1.4.1
1.5.0
1.5.1
1.6.0.beta
2.*
2.0.0
2.0.0.alpha
2.0.0.rc1
2.0.1
2.1.0
2.2.0
2.2.3
2.2.4
3.*
3.0.0
3.0.0.beta1
3.0.0.rc1
v2.*
v2.2.1
v2.2.10
v2.2.11
v2.2.12
v2.2.13
v2.2.14
v2.2.15
v2.2.16
v2.2.17
v2.2.18
v2.2.19
v2.2.2
v2.2.20
v2.2.21
v2.2.22
v2.2.5
v2.2.6
v2.2.6.1
v2.2.6.2
v2.2.7
v2.2.8
v2.2.9
v3.*
v3.1.0
v3.1.10
v3.1.11
v3.1.12
v3.1.13
v3.1.14
v3.1.15
v3.1.16
v3.1.17
v3.1.18
v3.1.19
v3.1.2
v3.1.20
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.1.7
v3.1.8
v3.1.9
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5