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CVE-2026-6420

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:06abb90ea50cf98d88ca04f2bef82b179b6b983d4c6f1431e5982e1695770083
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"keylime","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:7.14.1-5.el10_2.1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"keylime","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"keylime","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:7.14.1-5.el10_2.1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"keylime","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1241","description":"Use of Predictable Algorithm in Random Number Generator","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"RHSA-2026:28582","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:28582"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/references/0
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-6420"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/references/1
{"name":"RHBZ#2458889","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458889"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d47c295d17aa2dce8bdc0f05ecc6a3ff571241fd4801ccf59c938209e57e2029 · sha256:a3f211b3111651ed… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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