Important: pcs security update
The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * rubygem-rack: Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters (CVE-2025-59830) * rack: Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion) (CVE-2025-61770) * rack: Rack's multipart parser buffers large non?file fields entirely in memory, enabling DoS (memory exhaustion) (CVE-2025-61771) * rack: Rack memory exhaustion denial of service (CVE-2025-61772) * rubygem-rack: Unbounded read in `Rack::Request` form parsing can lead to memory exhaustion (CVE-2025-61919) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * rubygem-rack: Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters (CVE-2025-59830) * rack: Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion) (CVE-2025-61770) * rack: Rack's multipart parser buffers large non?file fields entirely in memory, enabling DoS (memory exhaustion) (CVE-2025-61771) * rack: Rack memory exhaustion denial of service (CVE-2025-61772) * rubygem-rack: Unbounded read in `Rack::Request` form parsing can lead to memory exhaustion (CVE-2025-61919) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2025:20962
- https://access.redhat.com/security/cve/CVE-2025-59830
- https://access.redhat.com/security/cve/CVE-2025-61770
- https://access.redhat.com/security/cve/CVE-2025-61771
- https://access.redhat.com/security/cve/CVE-2025-61772
- https://access.redhat.com/security/cve/CVE-2025-61919
- https://bugzilla.redhat.com/2398167
- https://bugzilla.redhat.com/2402174
- https://bugzilla.redhat.com/2402175
- https://bugzilla.redhat.com/2402200
- https://bugzilla.redhat.com/2403180
- https://errata.almalinux.org/9/ALSA-2025-20962.html