CVE-2026-6420: Keylime: security bypass due to hardcoded tpm quote nonce
Redhat · keylime
Vendor fix available · Affected: Redhat keylime · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
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.
Affected products3
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- keylimefrom 7.14.0 before 7.14.2
- Red Hat · Red Hat Enterprise Linux 10Versions not stated
- Red Hat · Red Hat Enterprise Linux 9Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
CoverageNo articles yet
No CyberSIXT article names CVE-2026-6420 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.