CVE-2024-25126— Rack ReDos in content type parsing (2nd degree polynomial)
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I. Basic Information for CVE-2024-25126
Vulnerability Information
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Vulnerability Title
Rack ReDos in content type parsing (2nd degree polynomial)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack’s media type parser to take much longer than expected, leading to a possible denial of service vulnerability (ReDos 2nd degree polynomial). This vulnerability is patched in 3.0.9.1 and 2.2.8.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1333
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rack 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rack是模块化的Ruby Web服务器界面。 Rack 3.0.9.1 之前、 2.2.8.1之前版本存在安全漏洞，该漏洞源于精心设计的content type标头可能会导致 Rack 的媒体类型解析器花费比预期更长的时间，从而导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-25126
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- https://github.com/rack/rack/security/advisories/GHSA-22f2-v57c-j9cxx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-25126
Same Patch Batch · rack · 2024-02-28 · 3 CVEs total
| CVE-2024-26141 | 5.8 MEDIUM | Possible DoS Vulnerability with Range Header in Rack |
| CVE-2024-26146 | 5.3 MEDIUM | Possible Denial of Service Vulnerability in Rack Header Parsing |
IV. Related Vulnerabilities
Same product: rack
- CVE-2026-26962
Rack: Header injection in multipart requests - CVE-2026-34835
Rack: `Rack::Request` accepts invalid Host characters, enabl - CVE-2026-34827
Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser - CVE-2026-32762
Rack: Forwarded Header semicolon injection enables Host and - CVE-2026-34830
Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPIN
Same vendor: rack
- CVE-2026-39324
Rack::Session::Cookie secrets: decrypt failure fallback enab - CVE-2026-26962
Rack: Header injection in multipart requests - CVE-2026-34835
Rack: `Rack::Request` accepts invalid Host characters, enabl - CVE-2026-34827
Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser - CVE-2026-32762
Rack: Forwarded Header semicolon injection enables Host and
Same weakness: CWE-1333
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