# CVE-2025-61772: pcs: The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(... CVE-2025-61772 is fixed in 6 products on 1 platform, first by DEBIAN-CVE-2025-61772, released October 7, 2025. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-61772 - Priority: High - CVSS: 7.5 (Important) - EPSS: 0.0093 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 7, 2025 ## Description 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | cockpit-ha-cluster almalinux 10 | 0.12.1-1.el10_1.1 | [ALSA-2025:21036](https://patchblox.com/security/data/fix/linux/alsa-2025-21036.md) | Nov 11, 2025 | | Linux | cockpit-ha-cluster ol 10 | 0:0.12.0-3.0.1.el10_0.3 | [ELSA-2025-19513](https://patchblox.com/security/data/fix/linux/elsa-2025-19513.md) | Nov 7, 2025 | | Linux | pcs RHEL 10 | 0.12.1-1.el10_1.1 | [RHSA-2025:21036](https://patchblox.com/security/data/fix/linux/rhsa-2025-21036.md) | Oct 10, 2025 | | Linux | pcs RHEL 8 | 0:0.10.18-2.el8_10.7 | [RHSA-2025:19719](https://patchblox.com/security/data/fix/linux/rhsa-2025-19719.md) | Nov 4, 2025 | | Linux | pcs RHEL 9 | 0:0.11.10-1.el9_7.1 | [RHSA-2025:20962](https://patchblox.com/security/data/fix/linux/rhsa-2025-20962.md) | Nov 11, 2025 | | Linux | pcs almalinux 8 | 0.10.18-2.el8_10.7.alma.1 | [ALSA-2025:19719](https://patchblox.com/security/data/fix/linux/alsa-2025-19719.md) | Nov 4, 2025 | | Linux | pcs almalinux 9 | 0.11.10-1.el9_7.1 | [ALSA-2025:20962](https://patchblox.com/security/data/fix/linux/alsa-2025-20962.md) | Nov 11, 2025 | | Linux | pcs ol 10 | 0:0.12.0-3.0.1.el10_0.3 | [ELSA-2025-19513](https://patchblox.com/security/data/fix/linux/elsa-2025-19513.md) | Nov 7, 2025 | | Linux | pcs ol 8 | 0:0.10.18-2.0.1.el8_10.7 | [ELSA-2025-19719](https://patchblox.com/security/data/fix/linux/elsa-2025-19719.md) | Nov 6, 2025 | | Linux | pcs ol 9 | 0:0.11.9-2.el9_6.2 | [ELSA-2025-19512](https://patchblox.com/security/data/fix/linux/elsa-2025-19512.md) | Nov 3, 2025 | | Linux | pcs rocky 8 | 0:0.10.18-2.el8_10.7 | [RLSA-2025:19719](https://patchblox.com/security/data/fix/linux/rlsa-2025-19719.md) | Nov 5, 2025 | | Linux | pcs rocky 9 | 0:0.11.10-1.el9_7.1 | [RLSA-2025:20962](https://patchblox.com/security/data/fix/linux/rlsa-2025-20962.md) | Nov 21, 2025 | | Linux | pcs-snmp RHEL 8 | 0:0.10.18-2.el8_10.7 | [RHSA-2025:19719](https://patchblox.com/security/data/fix/linux/rhsa-2025-19719.md) | Nov 4, 2025 | | Linux | pcs-snmp RHEL 9 | 0:0.11.10-1.el9_7.1 | [RHSA-2025:20962](https://patchblox.com/security/data/fix/linux/rhsa-2025-20962.md) | Nov 11, 2025 | | Linux | pcs-snmp almalinux 8 | 0.10.18-2.el8_10.7.alma.1 | [ALSA-2025:19719](https://patchblox.com/security/data/fix/linux/alsa-2025-19719.md) | Nov 4, 2025 | | Linux | pcs-snmp almalinux 9 | 0.11.10-1.el9_7.1 | [ALSA-2025:20962](https://patchblox.com/security/data/fix/linux/alsa-2025-20962.md) | Nov 11, 2025 | | Linux | pcs-snmp ol 10 | 0:0.12.0-3.0.1.el10_0.3 | [ELSA-2025-19513](https://patchblox.com/security/data/fix/linux/elsa-2025-19513.md) | Nov 7, 2025 | | Linux | pcs-snmp ol 8 | 0:0.10.18-2.0.1.el8_10.7 | [ELSA-2025-19719](https://patchblox.com/security/data/fix/linux/elsa-2025-19719.md) | Nov 6, 2025 | | Linux | pcs-snmp ol 9 | 0:0.11.9-2.el9_6.2 | [ELSA-2025-19512](https://patchblox.com/security/data/fix/linux/elsa-2025-19512.md) | Nov 3, 2025 | | Linux | ruby-rack Debian 12.15 (bookworm) | 2.2.20-0+deb12u1 | [DEBIAN-CVE-2025-61772](https://patchblox.com/security/data/fix/linux/debian-cve-2025-61772.md) | Oct 7, 2025 | | Linux | ruby-rack Debian 13.5 (trixie) | 3.1.18-1~deb13u1 | [DEBIAN-CVE-2025-61772](https://patchblox.com/security/data/fix/linux/debian-cve-2025-61772.md) | Oct 7, 2025 | | Linux | ruby-rack Debian 14 | 3.1.18-1 | [DEBIAN-CVE-2025-61772](https://patchblox.com/security/data/fix/linux/debian-cve-2025-61772.md) | Oct 7, 2025 | | Linux | ruby-rack Ubuntu 22.04.1 LTS (jammy) | 2.1.4-5ubuntu1.2 | [ruby-rack 2.1.4-5ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-rack-2.1.4-5ubuntu1.2.md) | Oct 10, 2025 | | Linux | ruby-rack Ubuntu 24.04.5 LTS (noble) | 2.2.7-1ubuntu0.5 | [ruby-rack 2.2.7-1ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ruby-rack-2.2.7-1ubuntu0.5.md) | Oct 10, 2025 | | Linux | ruby-rack Ubuntu 25.10 (questing) | 3.1.16-0.1ubuntu0.1 | [ruby-rack 3.1.16-0.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-ruby-rack-3.1.16-0.1ubuntu0.1.md) | Oct 10, 2025 | | Linux | rubygem-rack Fedora 43 | 1:3.1.19-1.fc43 | [FEDORA-2025-B6E0F437B6](https://patchblox.com/security/data/fix/linux/fedora-2025-b6e0f437b6.md) | Nov 4, 2025 | | Linux | rubygem-rack-doc Fedora 43 | 1:3.1.19-1.fc43 | [FEDORA-2025-B6E0F437B6](https://patchblox.com/security/data/fix/linux/fedora-2025-b6e0f437b6.md) | Nov 4, 2025 | --- Data as of 2026-11-08T13:06:02Z UTC. 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