CVE-2025-27219
Apache CGI Denial of Service Vulnerability
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.
INFO
Published Date :
March 4, 2025, 12:15 a.m.
Last Modified :
March 5, 2025, 2:05 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2025-27219 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-27219.
| URL | Resource |
|---|---|
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml | Third Party Advisory |
| https://hackerone.com/reports/2936778 | Permissions Required |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
💎 The Missing Cheatsheet for Ruby
ruby cheatsheet awesome basic programming lambdas loop range hash yield gem ruby-gem ruby-lang ruby-articles ruby-scripts ruby-on-rails
Ruby Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-27219 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-27219 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added CPE Configuration OR *cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:* versions from (excluding) 0.3.5.1 *cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:* versions from (including) 0.4.0 from (excluding) 0.4.2 *cpe:2.3:a:ruby-lang:cgi:0.3.6:*:*:*:*:ruby:*:* Added Reference Type MITRE: https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml Types: Third Party Advisory Added Reference Type MITRE: https://hackerone.com/reports/2936778 Types: Permissions Required -
New CVE Received by [email protected]
Mar. 04, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L Added CWE CWE-770 Added Reference https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml Added Reference https://hackerone.com/reports/2936778
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-27219 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-27219
weaknesses.