MEDIUM 5.3 Microsoft
CVE-2025-27219
In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.
Microsoft Security Update 2025-Mar: In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.
Affected Products
- cbl2 ruby 3.1.4-9 on CBL Mariner 2.0
- azl3 ruby 3.3.5-3 on Azure Linux 3.0
- cbl2 ruby 3.1.4-9 on CBL-Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27219
- https://nvd.nist.gov/vuln/detail/CVE-2025-27219
This medium severity vulnerability with a CVSS score of 5.3 was published on 2025-03-11 via Microsoft. Affected: cbl2 ruby 3.1.4-9 on CBL Mariner 2.0, azl3 ruby 3.3.5-3 on Azure Linux 3.0, cbl2 ruby 3.1.4-9 on CBL-Mariner 2.0.
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