CVE-2021-41819

State: Published
Severity: 7.5 High
Published: Jan 1, 2022
Updated: May 22, 2025
Reserved: Sep 29, 2021

Description

CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-565 Reliance on Cookies without Validation and Integrity Checking

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://hackerone.com/reports/910552
https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819/
https://security.netapp.com/advisory/ntap-20220121-0003/
FEDORA-2022-82a9edac27vendor-advisory
FEDORA-2022-8cf0124addvendor-advisory
GLSA-202401-27vendor-advisory

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