# CVE-2026-6420: keylime: A flaw was found in Keylime CVE-2026-6420 is fixed in 8 products on 1 platform, first by RHSA-2026:28582, released May 6, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-6420 - Priority: Routine - CVSS: 6.3 (moderate) - EPSS: 0.0012 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 6, 2026 ## Description A flaw was found in Keylime. An attacker with root access on an enrolled monitored machine, where the Keylime agent runs, can exploit a vulnerability in the Keylime verifier. The verifier uses a hardcoded challenge nonce for Trusted Platform Module (TPM) quote attestation instead of a cryptographically random value. This allows the attacker to stockpile valid TPM quotes and replay them to evade detection after compromising the system. This issue affects only the push model deployment. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | keylime Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime RHEL 10 | 7.14.1-5.el10_2.1 | [RHSA-2026:28582](https://patchblox.com/security/data/fix/linux/rhsa-2026-28582.md) | May 6, 2026 | | Linux | keylime almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime opensuse-leap 16.0 | 7.14.2-160000.1.1 | [OPENSUSE-SU-2026:21025-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21025-1.md) | Jun 22, 2026 | | Linux | keylime rocky 10 | 0:7.14.1-5.el10_2.1 | [RLSA-2026:28582](https://patchblox.com/security/data/fix/linux/rlsa-2026-28582.md) | Jun 25, 2026 | | Linux | keylime sles 16.0 | 7.14.2-160000.1.1 | [SUSE-SU-2026:22326-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22326-1.md) | Jun 22, 2026 | | Linux | keylime-base Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-base almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-base ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime-registrar Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-registrar almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-registrar ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime-selinux Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-selinux almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-selinux ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime-tenant Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-tenant almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-tenant ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime-tools Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-tools almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-tools ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | keylime-verifier Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | keylime-verifier almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | keylime-verifier ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | | Linux | python3-keylime Fedora 43 | 7.14.2-1.fc43 | [FEDORA-2026-513C495139](https://patchblox.com/security/data/fix/linux/fedora-2026-513c495139.md) | May 29, 2026 | | Linux | python3-keylime almalinux 10 | 7.14.1-5.el10_2.1 | [ALSA-2026:28582](https://patchblox.com/security/data/fix/linux/alsa-2026-28582.md) | Jun 23, 2026 | | Linux | python3-keylime ol 10 | 0:7.14.1-5.el10_2.1 | [ELSA-2026-28582](https://patchblox.com/security/data/fix/linux/elsa-2026-28582.md) | Jul 16, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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