CVE-2024-27133Public exploitNetwork attack vector

Client-side code execution via unescaped dataset schema

Published Feb 23, 2024 · Updated Aug 22, 2024

Cross-site scripting in MLflow 2.9.2 and earlier allows remote attackers to execute code in Jupyter via an untrusted dataset. The Recipes ingest step passes schema fields through BaseCard.render_table and inserts the result into the Data Schema template without Jinja escaping. A user must run and inspect a recipe that consumes the attacker-controlled dataset, after which injected markup executes in the Jupyter client context.

CVSS severity9.6
Critical
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in MLflow 2.9.2 and earlier allows remote attackers to execute code in Jupyter via an untrusted dataset. The Recipes ingest step passes schema fields through BaseCard.render_table and inserts the result into the Data Schema template without Jinja escaping. A user must run and inspect a recipe that consumes the attacker-controlled dataset, after which injected markup executes in the Jupyter client context.

The record

CVE
CVE-2024-27133
Published
Feb 23, 2024
Updated
Aug 22, 2024
Vendor
MLflow Project
Product
MLflow
Classifications
CWE-79, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MLflow Project · MLflowversion=0 <=2.9.2

Published CVSS scores

7.5JFrogCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
9.6NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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