CVE-2026-33866Disclosure(lfprojects / mlflow)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user without permissions to a given experiment can directly query this endpoint and retrieve model artifacts they are not authorized to access. This issue affects MLflow version through 3.10.1

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0.0/ 10 priority

Sources & remediation

Patch / fix

https://github.com/mlflow/mlflow/pull/21708

Exploit / PoC references

https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors

Vendor / third-party advisories

https://cert.pl/en/posts/2026/04/CVE-2026-33865/

Weakness type (CWE)

CWE-862

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

mlflow

Threat summary

3 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 3 signals
Disclosure: 3 classified signals
Peaked at 2 mentions on most recent observed day (2026-04-13)
3 total mentions across 2 days

Affected systems

Vendors

lfprojects

Products

mlflow

Deep dive

Activity timeline3 mentions / 2d

Signal classification1 categories

Disclosure

3100.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-07	1	Disclosure1
2026-04-13	2	Disclosure2

Full discourse3 posts

Infoflowcloud@infoflowcloud178d
Disclosure
🚨*CVE* CVE-2026-33866 MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user w… https://www.cve.org/CVERecord?id=CVE-2026-33866 ----- Traducción: CVE-2026-33866 MLf… http://infoflow.cloud`
Post summary
CVE-2026-33866 discloses an authorization bypass in MLflow’s AJAX endpoint for downloading model artifacts caused by missing access‑control validation, linking to the official CVE record.
0000038
71 followersView on X
CVE@CVEnew178d
Disclosure
CVE-2026-33866 MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user w… https://www.cve.org/CVERecord?id=CVE-2026-33866
Post summary
The text announces an authorization bypass vulnerability in MLflow’s AJAX endpoint for downloading model artifacts, noting missing access control but no evidence of exploits, POCs, or mitigations.
00000692
57.1K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds184d
Disclosure
CVE-2026-33866 Authorization Bypass in MLflow AJAX Endpoint for Model Artifact Download https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-33866
Post summary
A brief announcement of an authorization bypass vulnerability in MLflow's AJAX endpoint, with no PoC, exploit code, or patch information provided.
0000052
4.0K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	lfprojects	mlflow	-	-	-

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