RA
Product
rack
by rack · last CVE Apr 2, 2026
37
CVEs
0
On KEV
7.5
Max CVSS
0
New 30D
Severity mix
Critical 0High 22Medium 15Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-34827
7.5
0%
Apr 2
Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser
Affected: >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34830
7.5
0%
Apr 2
Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34829
7.5
0%
Apr 2
Rack: Denial of Service via Unbounded Multipart File Upload Without Content-Length
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34826
7.5
0%
Apr 2
Rack: Unbounded Range Count in get_byte_ranges Enables DoS
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34785
7.5
0%
Apr 2
Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34230
7.5
0%
Apr 2
Rack: Quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-22860
7.5
1%
Feb 18
Rack has a Directory Traversal via Rack:Directory
Affected: < 2.2.22; >= 3.0.0.beta1, < 3.1.20; >= 3.2.0, < 3.2.5
CVE-2025-61919
7.5
1%
Oct 10
Rack is a modular Ruby web server interface
Affected: before 2.2.20; 3.0.0 before 3.1.18; 3.2.0 before 3.2.3
CVE-2025-61772
7.5
1%
Oct 7
Rack is a modular Ruby web server interface
Affected: before 2.2.19; 3.1.0 before 3.1.17; 3.2.0 before 3.2.2
CVE-2025-61771
7.5
1%
Oct 7
Rack is a modular Ruby web server interface
Affected: before 2.2.19; 3.1.0 before 3.1.17; 3.2.0 before 3.2.2
CVE-2025-61770
7.5
1%
Oct 7
Rack is a modular Ruby web server interface
Affected: before 2.2.19; 3.1.0 before 3.1.17; 3.2.0 before 3.2.2
CVE-2025-59830
7.5
1%
Sep 25
Rack is a modular Ruby web server interface
Affected: before 2.2.18
CVE-2025-46727
7.5
1%
May 7
Rack is a modular Ruby web server interface
Affected: before 2.2.14; 3.0.0 before 3.0.16; 3.1.0 before 3.1.14
CVE-2025-27610
7.5
1%
Mar 10
Rack provides an interface for developing web applications in Ruby
Affected: before 2.2.13; 3.0.0 before 3.0.14; 3.1.0 before 3.1.12
CVE-2025-27111
7.5
1%
Mar 4
Rack is a modular Ruby web server interface
Affected: before 2.2.12; 3.0.0 before 3.0.13; 3.1.0 before 3.1.11
CVE-2024-26146
7.5
2%
Feb 29
Rack is a modular Ruby web server interface
Affected: 0.4 before 2.0.9.4; 2.1.0 before 2.1.4.4; 2.2.0 before 2.2.8.1
CVE-2024-26141
7.5
2%
Feb 29
Rack is a modular Ruby web server interface
Affected: 1.3.0 before 2.2.8.1; 3.0.0 before 3.0.9.1
CVE-2024-25126
7.5
35%
Feb 29
Rack is a modular Ruby web server interface
Affected: 0.4 before 2.2.8.1; 3.0.0 before 3.0.9.1
CVE-2023-27530
7.5
2%
Mar 10
A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that…
Affected: before 2.0.9.3; 2.1.0 before 2.1.4.3; 2.2.0 before 2.2.6.3; 3.0.0 before 3.0.4.2
CVE-2022-44572
7.5
2%
Feb 9
A denial of service vulnerability in the multipart parsing component of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1 and 3.0.0.1 could allow an attacker tocraft input that can cause…
Affected: before 2.0.9.2; 2.1.0 before 2.1.4.2; 2.2.0 before 2.2.4.1
CVE-2022-44571
7.5
2%
Feb 9
There is a denial of service vulnerability in the Content-Disposition parsingcomponent of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1
Affected: 2.0.0 before 2.0.9.2; 2.1.0 before 2.1.4.2; 2.2.0 before 2.2.6.1; 3.0.0.0 before 3.0.4.1
CVE-2022-44570
7.5
2%
Feb 9
A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0
Affected: 1.5.0 before 2.0.9.2; 2.1.0 before 2.1.4.2; 2.2.0 before 2.2.6.1; 3.0.0 before 3.0.4.1
CVE-2026-26962
6.5
0%
Apr 2
Rack: Header injection in multipart requests
Affected: >= 3.2.0, < 3.2.6
CVE-2026-34835
6.5
0%
Apr 2
Rack: `Rack::Request` accepts invalid Host characters, enabling host allowlist bypass.
Affected: >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-32762
6.5
0%
Apr 2
Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing
Affected: >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34831
6.5
0%
Apr 2
Rack: Content-Length mismatch in Rack::Files error responses
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2025-25184
6.5
1%
Feb 12
Rack provides an interface for developing web applications in Ruby
Affected: before 2.2.11; 3.0.0 before 3.0.12; 3.1.0 before 3.1.10
CVE-2024-39316
6.5
1%
Jul 2
Rack is a modular Ruby web server interface
Affected: 3.1.0 before 3.1.5
CVE-2019-16782
5.9
4%
Dec 18
There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack)
Affected: before 1.6.12; 2.0.0 before 2.0.8
CVE-2026-25500
5.4
0%
Feb 18
Rack's Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href
Affected: < 2.2.22; >= 3.0.0.beta1, < 3.1.20; >= 3.2.0, < 3.2.5
CVE-2026-34786
5.3
0%
Apr 2
Rack: Rack::Static header_rules bypass via URL-encoded paths
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-34763
5.3
0%
Apr 2
Rack: Rack::Directory info disclosure and DoS via unescaped regex interpolation
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2026-26961
5.3
0%
Apr 2
Rack: Multipart Boundary Parsing Ambiguity allowing WAF Bypass
Affected: < 2.2.23; >= 3.0.0.beta1, < 3.1.21; >= 3.2.0, < 3.2.6
CVE-2025-61780
5.3
1%
Oct 10
Rack is a modular Ruby web server interface
Affected: before 2.2.20; 3.0.0 before 3.1.18; 3.2.0 before 3.2.3
CVE-2025-49007
5.3
1%
Jun 4
Rack is a modular Ruby web server interface
Affected: 3.1.0 before 3.1.16
CVE-2023-27539
5.3
1%
Jan 9
There is a denial of service vulnerability in the header parsing component of Rack
Affected: 2.0.0 before 2.2.6.4; 3.0.0 before 3.0.6.1
CVE-2025-32441
4.2
0%
May 7
Rack is a modular Ruby web server interface
Affected: before 2.2.14
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