CVE-2026-6420 (GCVE-0-2026-6420)
Vulnerability from cvelistv5
Published
2026-05-06 10:19
Modified
2026-08-26 16:35
CWE
  • CWE-1241 - Use of Predictable Algorithm in Random Number Generator
Summary
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.
References
https://access.redhat.com/errata/RHSA-2026:28582 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-6420 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2458889 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Version: 7.14.0   
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   Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:7.14.1-5.el10_2.1   < *
    cpe:/o:redhat:enterprise_linux:10.2
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   Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Show details on NVD website


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