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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2853-1 ruby2.3 security update
Debian DSA Debian DSA DSA-5066-1 ruby2.5 security update
Debian DSA Debian DSA DSA-5067-1 ruby2.7 security update
Github GHSA Github GHSA GHSA-4vf4-qmvg-mh7h Cookie Prefix Spoofing in CGI::Cookie.parse
Ubuntu USN Ubuntu USN USN-5235-1 Ruby vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 22 May 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-05-22T15:00:52.998Z

Reserved: 2021-09-29T00:00:00.000Z

Link: CVE-2021-41819

cve-icon Vulnrichment

Updated: 2024-08-04T03:22:24.942Z

cve-icon NVD

Status : Modified

Published: 2022-01-01T06:15:07.293

Modified: 2025-05-22T15:15:54.060

Link: CVE-2021-41819

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-11-24T00:00:00Z

Links: CVE-2021-41819 - Bugzilla

cve-icon OpenCVE Enrichment

No data.