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OpenAdvisories
High USN-6837-1 4 CVEs

ruby-rack vulnerabilities

Published Jun 17, 2024 · Updated Feb 10, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Rack incorrectly handled Multipart MIME parsing. A
remote attacker could possibly use this issue to cause Rack to consume
resources, leading to a denial of service. This issue only affected Ubuntu
23.10. (CVE-2023-27530)

It was discovered that Rack incorrectly parsed certain media types. A
remote attacker could possibly use this issue to cause Rack to consume
resources, leading to a denial of service. (CVE-2024-25126)

It was discovered that Rack incorrectly handled certain Range headers. A
remote attacker could possibly use this issue to cause Rack to create large
responses, leading to a denial of service. This issue only affected Ubuntu
24.04 LTS. (CVE-2024-26141)

It was discovered that Rack incorrectly handled certain crafted headers. A
remote attacker could possibly use this issue to cause Rack to consume
resources, leading to a denial of service. This issue only affected Ubuntu
24.04 LTS. (CVE-2024-26146)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 24.04 LTS 24.04:LTS ruby-rack 2.2.7-1ubuntu0.1

Vulnerabilities 4

  • High 7.5
    CVE-2023-27530

    Rack has possible DoS Vulnerability in Multipart MIME parsing

    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 can be abuse to cause multipart parsing to take longer than expected.

    rack ruby-rack ruby-rack Debian Ubuntu RubyGems
  • Medium 5.8
    CVE-2024-26141

    Possible DoS Vulnerability with Range Header in Rack

    Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue. Vulnerable applications will use the …

    rack rack kube-fluentd-operator rack Debian Ubuntu Wolfi RubyGems
  • Medium 5.3
    CVE-2024-25126 EPSS 35%

    Rack ReDos in content type parsing (2nd degree polynomial)

    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 i…

    rack rack kube-fluentd-operator rack Debian Ubuntu Wolfi RubyGems
  • Medium 5.3
    CVE-2024-26146

    Possible Denial of Service Vulnerability in Rack Header Parsing

    Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this …

    rack rack kube-fluentd-operator rack Debian Ubuntu Wolfi RubyGems

References

  • report
    https://ubuntu.com/security/CVE-2023-27530
  • report
    https://ubuntu.com/security/CVE-2024-25126
  • report
    https://ubuntu.com/security/CVE-2024-26141
  • report
    https://ubuntu.com/security/CVE-2024-26146