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.

Routine
CVSS
6.3
moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0012
1st percentile

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

ProductFixed inFixReleased
Linux
keylime · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime · RHEL 10 7.14.1-5.el10_2.1 RHSA-2026:28582 May 6, 2026
keylime · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime · opensuse-leap 16.0 7.14.2-160000.1.1 OPENSUSE-SU-2026:21025-1 Jun 22, 2026
keylime · rocky 10 0:7.14.1-5.el10_2.1 RLSA-2026:28582 Jun 25, 2026
keylime · sles 16.0 7.14.2-160000.1.1 SUSE-SU-2026:22326-1 Jun 22, 2026
keylime-base · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-base · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-base · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime-registrar · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-registrar · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-registrar · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime-selinux · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-selinux · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-selinux · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime-tenant · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-tenant · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-tenant · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime-tools · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-tools · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-tools · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
keylime-verifier · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
keylime-verifier · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
keylime-verifier · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026
python3-keylime · Fedora 43 7.14.2-1.fc43 FEDORA-2026-513C495139 May 29, 2026
python3-keylime · almalinux 10 7.14.1-5.el10_2.1 ALSA-2026:28582 Jun 23, 2026
python3-keylime · ol 10 0:7.14.1-5.el10_2.1 ELSA-2026-28582 Jul 16, 2026

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.