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Affected Component
Analysis
ruby
Patched
Name
CVE-2025-27219
Description
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.
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.ymlThird Party Advisory
https://hackerone.com/reports/2936778Permissions Required
Analysis#
Vulnerability Ratings#
5.8
CVSSv31
7.5
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
ruby (yocto:kirkstone)
#
Title
Author
Resolve
1
Use String#concat instead of String#+ for reducing cpu usage
Hiroshi SHIBATA <hsbt@ruby-lang.org>
CVE-2025-27219