CVE-2025-59830 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-59830 Interim 1 4 2026-03-05T00:28:38Z current 2025-10-03T23:13:39Z 2026-03-05T00:28:38Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-59830 Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters than intended. Applications or middleware that directly invoke Rack::QueryParser with its default configuration (no explicit delimiter) could be exposed to increased CPU and memory consumption. This can be abused as a limited denial-of-service vector. This issue has been patched in version 2.2.18. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-November/002167.html E-Mail link for RHSA-2025:19512 https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-November/002181.html E-Mail link for RHSA-2025:19719 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Liberty Linux 8 SUSE Liberty Linux 9 SUSE Linux Enterprise High Availability Extension 15 SP3 SUSE Linux Enterprise High Availability Extension 15 SP4 SUSE Linux Enterprise High Availability Extension 15 SP5 SUSE Linux Enterprise High Availability Extension 15 SP6 SUSE Linux Enterprise High Availability Extension 15 SP7 openSUSE Leap 15.6 openSUSE Tumbleweed pcs-0.10.18-2.el8_10.7 pcs-0.11.9-2.el9_6.2 pcs-snmp-0.10.18-2.el8_10.7 pcs-snmp-0.11.9-2.el9_6.2 ruby2.5-rubygem-rack ruby2.5-rubygem-rack-1_6 ruby2.5-rubygem-rack-doc ruby2.5-rubygem-rack-doc-1_6 ruby2.5-rubygem-rack-testsuite ruby2.5-rubygem-rack-testsuite-1_6 ruby3.4-rubygem-rack-2.2-2.2.18-1.1 ruby4.0-rubygem-rack-2.2-2.2.22-1.1 rubygem-rack rubygem-rack-1_6 pcs-0.10.18-2.el8_10.7 as a component of SUSE Liberty Linux 8 pcs-snmp-0.10.18-2.el8_10.7 as a component of SUSE Liberty Linux 8 pcs-0.11.9-2.el9_6.2 as a component of SUSE Liberty Linux 9 pcs-snmp-0.11.9-2.el9_6.2 as a component of SUSE Liberty Linux 9 ruby3.4-rubygem-rack-2.2-2.2.18-1.1 as a component of openSUSE Tumbleweed ruby4.0-rubygem-rack-2.2-2.2.22-1.1 as a component of openSUSE Tumbleweed ruby2.5-rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP3 rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP3 ruby2.5-rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP4 rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP4 ruby2.5-rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP5 rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP5 ruby2.5-rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP6 rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP6 ruby2.5-rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP7 rubygem-rack as a component of SUSE Linux Enterprise High Availability Extension 15 SP7 ruby2.5-rubygem-rack as a component of openSUSE Leap 15.6 ruby2.5-rubygem-rack-doc as a component of openSUSE Leap 15.6 ruby2.5-rubygem-rack-testsuite as a component of openSUSE Leap 15.6 rubygem-rack as a component of openSUSE Leap 15.6 ruby2.5-rubygem-rack-1_6 as a component of openSUSE Leap 15.6 ruby2.5-rubygem-rack-doc-1_6 as a component of openSUSE Leap 15.6 ruby2.5-rubygem-rack-testsuite-1_6 as a component of openSUSE Leap 15.6 rubygem-rack-1_6 as a component of openSUSE Leap 15.6 Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters than intended. Applications or middleware that directly invoke Rack::QueryParser with its default configuration (no explicit delimiter) could be exposed to increased CPU and memory consumption. This can be abused as a limited denial-of-service vector. This issue has been patched in version 2.2.18. CVE-2025-59830 SUSE Liberty Linux 8:pcs-0.10.18-2.el8_10.7 SUSE Liberty Linux 8:pcs-snmp-0.10.18-2.el8_10.7 SUSE Liberty Linux 9:pcs-0.11.9-2.el9_6.2 SUSE Liberty Linux 9:pcs-snmp-0.11.9-2.el9_6.2 openSUSE Tumbleweed:ruby3.4-rubygem-rack-2.2-2.2.18-1.1 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 important 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H