CVEvulnerability
CVE-2026-6420
6.3 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-05-06
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.3 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
- Weaknesses
- CWE-1241
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.
Related
Weakness · CWE (1)
- CWE-1241 Use of Predictable Algorithm in Random Number Generator weakness
References
- https://access.redhat.com/errata/RHSA-2026:28582 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-6420 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2458889 bugzilla.redhat.com