MEDIUM 4.0 Microsoft
CVE-2025-27220
In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.
Microsoft Security Update 2025-Mar: In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.
Affected Products
- cbl2 ruby 3.1.4-9 on CBL Mariner 2.0
- cbl2 ruby 3.1.4-9 on CBL-Mariner 2.0
- azl3 ruby 3.3.5-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27220
- https://nvd.nist.gov/vuln/detail/CVE-2025-27220
This medium severity vulnerability with a CVSS score of 4.0 was published on 2025-03-11 via Microsoft. Affected: cbl2 ruby 3.1.4-9 on CBL Mariner 2.0, cbl2 ruby 3.1.4-9 on CBL-Mariner 2.0, azl3 ruby 3.3.5-3 on Azure Linux 3.0.
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