# CVE-2025-67725: pcs: The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.  Security Fix(...

CVE-2025-67725 is fixed in 14 products on 1 platform, first by python-tornado 4.5.3-1ubuntu0.2+esm2, released December 11, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-67725
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0056
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 11, 2025

## Description

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.  Security Fix(es):  * tornado: Tornado Quadratic DoS via Repeated Header Coalescing (CVE-2025-67725)  * tornado: Tornado Quadratic DoS via Crafted Multipart Parameters (CVE-2025-67726)  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 | pcs RHEL 8 | 0:0.10.18-2.el8_10.8 | [RHSA-2026:0930](https://patchblox.com/security/data/fix/linux/rhsa-2026-0930.md) | Jan 21, 2026 |
| Linux | pcs almalinux 8 | 0.10.18-2.el8_10.8.alma.1 | [ALSA-2026:0930](https://patchblox.com/security/data/fix/linux/alsa-2026-0930.md) | Jan 21, 2026 |
| Linux | pcs ol 8 | 0:0.10.18-2.0.1.el8_10.8 | [ELSA-2026-0930](https://patchblox.com/security/data/fix/linux/elsa-2026-0930.md) | Jan 21, 2026 |
| Linux | pcs rocky 8 | 0:0.10.18-2.el8_10.8 | [RLSA-2026:0930](https://patchblox.com/security/data/fix/linux/rlsa-2026-0930.md) | Jan 23, 2026 |
| Linux | pcs-snmp RHEL 8 | 0:0.10.18-2.el8_10.8 | [RHSA-2026:0930](https://patchblox.com/security/data/fix/linux/rhsa-2026-0930.md) | Jan 21, 2026 |
| Linux | pcs-snmp almalinux 8 | 0.10.18-2.el8_10.8.alma.1 | [ALSA-2026:0930](https://patchblox.com/security/data/fix/linux/alsa-2026-0930.md) | Jan 21, 2026 |
| Linux | pcs-snmp ol 8 | 0:0.10.18-2.0.1.el8_10.8 | [ELSA-2026-0930](https://patchblox.com/security/data/fix/linux/elsa-2026-0930.md) | Jan 21, 2026 |
| Linux | python-tornado Debian 12.15 (bookworm) | 6.2.0-3+deb12u4 | [DEBIAN-CVE-2025-67725](https://patchblox.com/security/data/fix/linux/debian-cve-2025-67725.md) | Dec 12, 2025 |
| Linux | python-tornado Debian 13.5 (trixie) | 6.4.2-3+deb13u2 | [DEBIAN-CVE-2025-67725](https://patchblox.com/security/data/fix/linux/debian-cve-2025-67725.md) | Dec 12, 2025 |
| Linux | python-tornado Debian 14 | 6.5.4-0.1 | [DEBIAN-CVE-2025-67725](https://patchblox.com/security/data/fix/linux/debian-cve-2025-67725.md) | Dec 12, 2025 |
| Linux | python-tornado Ubuntu 18.04.6 LTS (bionic) | 4.5.3-1ubuntu0.2+esm2 | [python-tornado 4.5.3-1ubuntu0.2+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-tornado-4.5.3-1ubuntu0.2-esm2.md) | Dec 11, 2025 |
| Linux | python-tornado sles 15.6 | 4.5.3-150000.3.13.1 | [SUSE-SU-2026:0222-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0222-1.md) | Jan 22, 2026 |
| Linux | python-tornado sles 15.7 | 4.5.3-150000.3.13.1 | [SUSE-SU-2026:0222-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0222-1.md) | Jan 22, 2026 |
| Linux | python-tornado-debugsource amzn 2023 | 6.1.0-2.amzn2023.0.6 | [ALAS2023-2025-1338](https://patchblox.com/security/data/fix/linux/alas2023-2025-1338.md) | Jan 7, 2026 |
| Linux | python-tornado-doc amzn 2023 | 6.1.0-2.amzn2023.0.6 | [ALAS2023-2025-1338](https://patchblox.com/security/data/fix/linux/alas2023-2025-1338.md) | Jan 7, 2026 |
| Linux | python-tornado6 opensuse-leap 15.6 | 6.3.2-150400.9.12.1 | [SUSE-SU-2026:0010-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0010-1.md) | Jan 5, 2026 |
| Linux | python-tornado6 opensuse-leap 16.0 | 6.5-160000.3.1 | [OPENSUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20015-1.md) | Jan 12, 2026 |
| Linux | python-tornado6 sles 15.6 | 6.3.2-150400.9.12.1 | [SUSE-SU-2026:0010-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0010-1.md) | Jan 5, 2026 |
| Linux | python-tornado6 sles 15.7 | 6.3.2-150400.9.12.1 | [SUSE-SU-2026:0010-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0010-1.md) | Jan 5, 2026 |
| Linux | python-tornado6 sles 16.0 | 6.5-160000.3.1 | [SUSE-SU-2026:20028-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20028-1.md) | Jan 12, 2026 |
| Linux | python3-tornado Ubuntu 18.04.6 LTS (bionic) | 4.5.3-1ubuntu0.2+esm2 | [python3-tornado 4.5.3-1ubuntu0.2+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-tornado-4.5.3-1ubuntu0.2-esm2.md) | Dec 11, 2025 |
| Linux | python3-tornado Ubuntu 20.04 LTS (focal) | 6.0.3+really5.1.1-3ubuntu0.1~esm3 | [python3-tornado 6.0.3+really5.1.1-3ubuntu0.1~esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-tornado-6.0.3-really5.1.1-3ubuntu0.1-esm3.md) | Dec 11, 2025 |
| Linux | python3-tornado Ubuntu 22.04.1 LTS (jammy) | 6.1.0-3ubuntu0.1~esm4 | [python3-tornado 6.1.0-3ubuntu0.1~esm4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-tornado-6.1.0-3ubuntu0.1-esm4.md) | Dec 11, 2025 |
| Linux | python3-tornado Ubuntu 24.04.5 LTS (noble) | 6.4.0-1ubuntu0.4 | [python3-tornado 6.4.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-tornado-6.4.0-1ubuntu0.4.md) | Dec 11, 2025 |
| Linux | python3-tornado Ubuntu 25.10 (questing) | 6.4.2-3ubuntu0.2 | [python3-tornado 6.4.2-3ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-python3-tornado-6.4.2-3ubuntu0.2.md) | Dec 11, 2025 |
| Linux | python3-tornado amzn 2023 | 6.1.0-2.amzn2023.0.6 | [ALAS2023-2025-1338](https://patchblox.com/security/data/fix/linux/alas2023-2025-1338.md) | Jan 7, 2026 |
| Linux | python3-tornado-debuginfo amzn 2023 | 6.1.0-2.amzn2023.0.6 | [ALAS2023-2025-1338](https://patchblox.com/security/data/fix/linux/alas2023-2025-1338.md) | Jan 7, 2026 |
| Linux | python3.13-tornado amzn 2023 | 6.4.2-1.amzn2023.0.2 | [ALAS2023-2026-1528](https://patchblox.com/security/data/fix/linux/alas2023-2026-1528.md) | Mar 30, 2026 |
| Linux | python3.13-tornado-debuginfo amzn 2023 | 6.4.2-1.amzn2023.0.2 | [ALAS2023-2026-1528](https://patchblox.com/security/data/fix/linux/alas2023-2026-1528.md) | Mar 30, 2026 |
| Linux | python3.13-tornado-debugsource amzn 2023 | 6.4.2-1.amzn2023.0.2 | [ALAS2023-2026-1528](https://patchblox.com/security/data/fix/linux/alas2023-2026-1528.md) | Mar 30, 2026 |
| Linux | python3.13-tornado-doc amzn 2023 | 6.4.2-1.amzn2023.0.2 | [ALAS2023-2026-1528](https://patchblox.com/security/data/fix/linux/alas2023-2026-1528.md) | Mar 30, 2026 |
| Linux | salt opensuse-leap 15.6 | 3006.0-150500.4.68.2 | [SUSE-SU-2026:1029-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1029-1.md) | Mar 25, 2026 |
| Linux | salt opensuse-leap 16.0 | 3006.0-160000.4.1 | [OPENSUSE-SU-2026:20412-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20412-1.md) | Mar 24, 2026 |
| Linux | salt sles 15.6 | 3006.0-150500.4.68.2 | [SUSE-SU-2026:1029-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1029-1.md) | Mar 25, 2026 |
| Linux | salt sles 15.7 | 3006.0-150700.14.16.1 | [SUSE-SU-2026:1030-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1030-1.md) | Mar 25, 2026 |
| Linux | salt-test opensuse-leap 15.6 | 3006.0-150500.4.68.1 | [SUSE-SU-2026:1029-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1029-1.md) | Mar 25, 2026 |
| Linux | salt-test opensuse-leap 16.0 | 3006.0-160000.4.1 | [OPENSUSE-SU-2026:20412-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20412-1.md) | Mar 24, 2026 |

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