In MLflow versions prior to 3.14.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to bypass experiment-level authorization controls on all trace operations, including reading, deleting, and modifying traces on experiments they do not have permission to access. The issue arises from the _before_request handler, which does not register authorization validators for trace endpoints, resulting in requests proceeding without validation. This vulnerability can expose sensitive data, destroy audit logs, and allow unauthorized modifications.
CVE-2026-8147
Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-02. a secondary CVSS source baseline 8.1; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(high)
- EPSS
- 25.7%
- KEV
- Not listed
Published
July 2, 2026
Last Modified
July 6, 2026
Advisory Details (2)
Auto-updated Jul 2, 2026huntr - The world's first bug bounty platform for AI/ML
https://huntr.com/bounties/b00c3ddd-373e-492f-9bf0-41a28bb21ed5commit f9b1eb510478 (mlflow/mlflow)
Fix landed in mlflow/mlflow commit f9b1eb510478 — awaiting tagged release
https://github.com/mlflow/mlflow/commit/f9b1eb510478570609ef451984a255775aa4b937Vendor Advisories for CVE-2026-8147(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 28× in last 7d / 28× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 00:44 UTCEG score recompute
- 2026-07-07 00:44 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 12:23 UTCEG score recompute
- 2026-07-06 12:23 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 23:59 UTCEG score recompute
- 2026-07-05 23:59 UTCGHSA enrichment
- 2026-07-05 11:38 UTCEG score recompute
- 2026-07-05 11:38 UTCGHSA enrichment
- 2026-07-05 02:31 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 23:16 UTCEG score recompute
- 2026-07-04 23:15 UTCGHSA enrichment
- 2026-07-04 10:54 UTCEG score recompute
- 2026-07-04 10:54 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 22:33 UTCEG score recompute
- 2026-07-03 22:33 UTCGHSA enrichment
- 2026-07-03 10:08 UTCEG score recompute
- 2026-07-03 10:07 UTCGHSA enrichment
- 2026-07-02 21:44 UTCEG score recompute
Show 3 moreShow fewer
- 2026-07-02 21:44 UTCGHSA enrichment
- 2026-07-02 09:23 UTCEG score recompute
- 2026-07-02 09:23 UTCNVD updatefirst tracked
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Same CWE
10 shownCWE-284
Frequently asked(5)
What is CVE-2026-8147?
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Is CVE-2026-8147 actively exploited?
What is the CVSS score of CVE-2026-8147?
How do I remediate CVE-2026-8147?
Dependency Blast Radius
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