Vulnerability · Published Mar 3, 2025 · Assigned by mitre
CVE-2025-27219
Medium 5.8
In plain English
A medium-severity resource allocation without limits in CGI from ruby-lang. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.8Medium
Exploit odds (30 days)0.8%top 41.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | ruby | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | ruby | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-bundled-gems | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-bundled-gems | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | ruby-default-gems | 3.3.8-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | ruby-default-gems | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | ruby-default-gems | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-devel | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-devel | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | ruby-doc | 3.3.8-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | ruby-doc | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-doc | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | ruby-libs | 3.1.7-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | ruby-libs | 3.3.8-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-abrt | 0.4.0-1.module_el8.9.0+3746+91b8233a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-abrt | 0.4.0-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.4.0-1.module_el8.10.0+3854+02eaa59a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.4.0-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-bigdecimal | 3.1.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-bigdecimal | 3.1.5-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | rubygem-bundler | 2.5.22-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-bundler | 2.3.27-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-bundler | 2.5.22-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-io-console | 0.5.11-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-io-console | 0.7.1-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | rubygem-irb | 1.13.1-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-irb | 1.13.1-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-irb | 1.4.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-json | 2.6.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-json | 2.7.2-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | rubygem-minitest | 5.20.0-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-minitest | 5.15.0-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-minitest | 5.20.0-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.5-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.3-3.module_el8.9.0+3746+91b8233a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.3-3.module_el8.10.0+3854+02eaa59a | ALSA-2025:4063 |
| AlmaLinux:9 | rubygem-mysql2 | 0.5.4-1.module_el9.1.0+8+503f6fbd | ALSA-2025:4488 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.5.3-3.module_el8.10.0+3854+02eaa59a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.5.5-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:9 | rubygem-mysql2-doc | 0.5.4-1.module_el9.1.0+8+503f6fbd | ALSA-2025:4488 |
| AlmaLinux:8 | rubygem-pg | 1.5.4-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-pg | 1.3.2-1.module_el8.9.0+3746+91b8233a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-pg | 1.3.2-1.module_el8.10.0+3854+02eaa59a | ALSA-2025:4063 |
| AlmaLinux:9 | rubygem-pg | 1.3.5-1.module_el9.1.0+8+503f6fbd | ALSA-2025:4488 |
| AlmaLinux:8 | rubygem-pg-doc | 1.3.2-1.module_el8.10.0+3854+02eaa59a | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-pg-doc | 1.5.4-1.module_el8.10.0+3799+191214cc | ALSA-2025:10217 |
| AlmaLinux:9 | rubygem-pg-doc | 1.3.5-1.module_el9.1.0+8+503f6fbd | ALSA-2025:4488 |
| AlmaLinux:10 | rubygem-power_assert | 2.0.3-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-power_assert | 2.0.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-power_assert | 2.0.3-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-psych | 5.1.2-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-psych | 4.0.4-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-racc | 1.7.3-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | rubygem-rake | 13.1.0-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-rake | 13.0.6-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-rake | 13.1.0-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-rbs | 2.7.0-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:8 | rubygem-rbs | 3.4.0-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:10 | rubygem-rdoc | 6.6.3.1-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-rdoc | 6.6.3.1-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-rdoc | 6.4.1.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygem-rexml | 3.3.9-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-rexml | 3.3.9-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-rexml | 3.3.9-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygem-rss | 0.3.1-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-rss | 0.3.1-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-rss | 0.3.1-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygem-test-unit | 3.6.1-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-test-unit | 3.6.1-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-test-unit | 3.5.3-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygem-typeprof | 0.21.9-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygem-typeprof | 0.21.9-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygem-typeprof | 0.21.3-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygems | 3.5.22-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygems | 3.5.22-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygems | 3.3.27-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| AlmaLinux:10 | rubygems-devel | 3.5.22-10.el10_0 | ALSA-2025:8131 |
| AlmaLinux:8 | rubygems-devel | 3.5.22-4.module_el8.10.0+4022+8b66723c | ALSA-2025:10217 |
| AlmaLinux:8 | rubygems-devel | 3.3.27-145.module_el8.10.0+3984+cf55e3df | ALSA-2025:4063 |
| Alpine:v3.20 | ruby | 3.3.8-r0 | ALPINE-CVE-2025-27219 |
| Alpine:v3.21 | ruby | 3.3.8-r0 | ALPINE-CVE-2025-27219 |
| Alpine:v3.20 | ruby-net-imap | 0.4.19-r0 | ALPINE-CVE-2025-27219 |
| Alpine:v3.21 | ruby-net-imap | 0.4.19-r0 | ALPINE-CVE-2025-27219 |
| Debian:12 | ruby3.1 | no fix listed | DEBIAN-CVE-2025-27219 |
| Debian:13 | ruby3.3 | 3.3.7-2 | DEBIAN-CVE-2025-27219 |
| Debian:14 | ruby3.3 | 3.3.7-2 | DEBIAN-CVE-2025-27219 |
| Rocky Linux:10 | ruby | 0:3.3.8-10.el10_0 | RLSA-2025:8131 |
| Rocky Linux:8 | ruby | 0:3.3.8-4.module+el8.10.0+2004+fd6e8d72 | RLSA-2025:10217 |
| Rocky Linux:8 | ruby | 0:3.1.7-145.module+el8.10.0+1957+16e0d1a2 | RLSA-2025:4063 |
| Rocky Linux:9 | ruby | 0:3.1.7-146.module+el9.5.0+31847+8b291b93 | RLSA-2025:4488 |
| Rocky Linux:9 | ruby | 0:3.3.8-4.module+el9.6.0+31867+3a5bf654 | RLSA-2025:4493 |
| Rocky Linux:9 | ruby | 0:3.0.7-165.el9_5 | RLSA-2025:4487 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1826+b62220b4 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1827+16ecb9d2 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.5.0+668+665814fa | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.9.0+1537+0b2034bd | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1679+61871737 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1741+bdb5b6ca | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1820+f3fffb92 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1826+b62220b4 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1827+16ecb9d2 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.5.0+668+665814fa | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.9.0+1537+0b2034bd | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1679+61871737 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1741+bdb5b6ca | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.10.0+1820+f3fffb92 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.5-1.module+el8.10.0+1827+16ecb9d2 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.5-1.module+el8.10.0+1679+61871737 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.3-3.module+el8.10.0+1744+6c504228 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.3-3.module+el8.10.0+1826+b62220b4 | RLSA-2025:4063 |
| Rocky Linux:9 | rubygem-mysql2 | 0:0.5.5-1.module+el9.6.0+31867+3a5bf654 | RLSA-2025:4493 |
| Rocky Linux:9 | rubygem-mysql2 | 0:0.5.4-1.module+el9.5.0+31847+8b291b93 | RLSA-2025:4488 |
| Rocky Linux:8 | rubygem-pg | 0:1.3.2-1.module+el8.10.0+1826+b62220b4 | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-pg | 0:1.3.2-1.module+el8.10.0+1741+bdb5b6ca | RLSA-2025:4063 |
| Rocky Linux:8 | rubygem-pg | 0:1.5.4-1.module+el8.10.0+1827+16ecb9d2 | RLSA-2025:10217 |
| Rocky Linux:8 | rubygem-pg | 0:1.5.4-1.module+el8.10.0+1679+61871737 | RLSA-2025:10217 |
| Rocky Linux:9 | rubygem-pg | 0:1.3.5-1.module+el9.5.0+31847+8b291b93 | RLSA-2025:4488 |
| Rocky Linux:9 | rubygem-pg | 0:1.5.4-1.module+el9.6.0+31867+3a5bf654 | RLSA-2025:4493 |
| RubyGems | cgi | 0.3.7 | GHSA-gh9q-2xrm-x6qv |
| RubyGems | cgi | 0.3.5.1 | GHSA-gh9q-2xrm-x6qv |
| RubyGems | cgi | 0.4.2 | GHSA-gh9q-2xrm-x6qv |
| Ubuntu:24.04:LTS | jruby | no fix listed | UBUNTU-CVE-2025-27219 |
| Ubuntu:25.10 | jruby | no fix listed | UBUNTU-CVE-2025-27219 |
| Ubuntu:26.04:LTS | jruby | no fix listed | UBUNTU-CVE-2025-27219 |
| Ubuntu:26.10 | jruby | no fix listed | UBUNTU-CVE-2025-27219 |
| Ubuntu:22.04:LTS | ruby3.0 | 3.0.2-7ubuntu2.10 | UBUNTU-CVE-2025-27219 |
| Ubuntu:22.04:LTS | ruby3.0 | 3.0.2-7ubuntu2.10 | USN-7418-1 |
| Ubuntu:24.04:LTS | ruby3.2 | 3.2.3-1ubuntu0.24.04.5 | UBUNTU-CVE-2025-27219 |
| Ubuntu:24.04:LTS | ruby3.2 | 3.2.3-1ubuntu0.24.04.5 | USN-7418-1 |
| Ubuntu:25.10 | ruby3.3 | 3.3.7-1ubuntu2 | UBUNTU-CVE-2025-27219 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L