CVE-2024-39901Network attack vector

Cross-tenant data access via missing author check

Published Jul 9, 2024 · Updated Aug 2, 2024

Improper authorization in OpenSearch Observability before 2.14 allows remote authenticated users to access private tenant resources via known IDs. The private-tenant path in UserAccessManager accepted a tenant match without requiring the resource access metadata to contain the requesting user's name. An authenticated user with an observability or reporting role and another user's resource ID can read, modify, or take ownership of that resource within the same instance.

CVSS severity4.2
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authorization in OpenSearch Observability before 2.14 allows remote authenticated users to access private tenant resources via known IDs. The private-tenant path in UserAccessManager accepted a tenant match without requiring the resource access metadata to contain the requesting user's name. An authenticated user with an observability or reporting role and another user's resource ID can read, modify, or take ownership of that resource within the same instance.

The record

CVE
CVE-2024-39901
Published
Jul 9, 2024
Updated
Aug 2, 2024
Vendor
OpenSearch Project
Product
OpenSearch Observability plugin
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2024CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 2.14.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenSearch Project · OpenSearch Observability pluginversion=< 2.14.0.0

Published CVSS scores

4.2GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo