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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
mitreCNA
5.8 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
VendorProductVersion
ruby-langcgi
𝑥
< 0.3.5.1
ruby-langcgi
0.4.0 ≤
𝑥
< 0.4.2
ruby-langcgi
0.3.6
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
jruby
oracular
needs-triage
noble
needs-triage
jammy
dne
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
ruby2.3
oracular
dne
noble
dne
jammy
dne
focal
dne
xenial
needs-triage
ruby2.5
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
needs-triage
ruby2.7
oracular
dne
noble
dne
jammy
dne
focal
needs-triage
ruby3.0
oracular
dne
noble
dne
jammy
needs-triage
focal
dne
ruby3.2
oracular
dne
noble
needs-triage
jammy
dne
focal
dne
ruby3.3
oracular
needs-triage
noble
dne
jammy
dne
focal
dne