Debian bullseye
Source: Debian Security Tracker
ruby2.7→ fixed in2.7.4-1+deb11u5urgency: not yet assignedsudo apt-get install --only-upgrade -y ruby2.7
Back to CVE digest
CVE-2025-27219 · cross-distro fix matrix
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 pa
Affects 5 Linux releases across 8 (distro × package) combinations.
Fix per ecosystem
Each block below is a distro release where CVE-2025-27219 has a known fix. Run the listed command on that distro to remediate.
Debian trixie
Source: Debian Security Tracker
ruby3.3→ fixed in3.3.7-2urgency: not yet assignedsudo apt-get install --only-upgrade -y ruby3.3
Alpine v3.20
Source: Alpine secdb
ruby-net-imap→ fixed in0.4.19-r0apk update && apk add --upgrade ruby-net-imap
ruby→ fixed in3.3.8-r0apk update && apk add --upgrade ruby
Alpine v3.21
Source: Alpine secdb
ruby-net-imap→ fixed in0.4.19-r0apk update && apk add --upgrade ruby-net-imap
ruby→ fixed in3.3.8-r0apk update && apk add --upgrade ruby
Alpine v3.19
Source: Alpine secdb
ruby-net-imap→ fixed in0.3.9-r0apk update && apk add --upgrade ruby-net-imap
ruby→ fixed in3.2.8-r0apk update && apk add --upgrade ruby
Are YOU affected by CVE-2025-27219?
5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.
curl https://mindsparkstack.com/scan.sh | bash
Continuous monitoring beats manual checking
CVE-2025-27219dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.
See StackPatch ($99 lifetime)