CVE-2025-27220

In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
mitreCNA
4 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 29%
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