CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2025-27219 – CGI: Denial of Service in CGI::Cookie.parse
https://notcve.org/view.php?id=CVE-2025-27219
03 Mar 2025 — 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. A flaw was found in Ruby's CGI gem. Processing specially crafted large cookies with the CGI::Cookie.parse method can cause excessive resource consumption due to a missing limit on t... • https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2025-27220 – CGI: ReDoS in CGI::Util#escapeElement
https://notcve.org/view.php?id=CVE-2025-27220
03 Mar 2025 — In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method. A flaw was found in Ruby's CGI gem. The CGI::Util#escapeElement method is vulnerable to Regular expression Denial of Service (ReDoS), allowing a specially crafted input to cause a high CPU consumption. It was discovered that Ruby incorrectly handled parsing of an XML document that has specific XML characters in an attribute value using REXML gem. An attacker could use t... • https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27220.yml • CWE-1333: Inefficient Regular Expression Complexity •