CVE-2023-6974Public exploitNetwork attack vector

Internal service access via followed HTTP redirects

Published Dec 20, 2023 · Updated Aug 2, 2024

Server-side request forgery in MLflow before 2.9.2 allows remote attackers to access internal HTTP services through the tracking server. The _get_http_response_with_retries helper passes attacker-influenced URLs to requests.Session.request while allowing redirects by default without restricting redirect destinations. No authentication or user interaction is required; exposed internal services or cloud metadata can be read, and obtained cloud credentials can enable command execution.

CVSS severity8.6
High
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in MLflow before 2.9.2 allows remote attackers to access internal HTTP services through the tracking server. The _get_http_response_with_retries helper passes attacker-influenced URLs to requests.Session.request while allowing redirects by default without restricting redirect destinations. No authentication or user interaction is required; exposed internal services or cloud metadata can be read, and obtained cloud credentials can enable command execution.

The record

CVE
CVE-2023-6974
Published
Dec 20, 2023
Updated
Aug 2, 2024
Vendor
MLflow Project
Product
MLflow
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=unspecified <2.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MLflow Project · MLflowversion=unspecified <2.9.2

Published CVSS scores

8.6huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

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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