Back to the CVE list
CVE-2025-27219

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.

CVSS score

5.3

EPSS probability

%0.8

Risk score

0.0

Published

1 y ago

Vulnerability Timeline (Change History)

CVE-2025-27219 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
14.10.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
11.03.2025CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
11.03.2025MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2025-27219

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2025-27219"