YugabyteDB prior 2025.x API Endpoint /metamaster/universe information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in YugabyteDB. This impacts an unknown function of the file /metamaster/universe of the component API Endpoint. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2025-8866. The attacker needs to be present on the local network. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in YugabyteDB. This vulnerability affects an unknown function of the file /metamaster/universe of the component API Endpoint. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

YugabyteDB Anywhere web server does not properly enforce authentication for the /metamaster/universe API endpoint. An unauthenticated attacker could exploit this flaw to obtain server networking configuration details, including private and public IP addresses and DNS records.

The advisory is available at docs.yugabyte.com. This vulnerability was named CVE-2025-8866 since 08/11/2025. The exploitation appears to be easy. The attack needs to approached within the local network. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 2025.x eliminates this vulnerability.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: YugabyteDB 2025.x

Timelineinfo

08/11/2025 Advisory disclosed
08/11/2025 +0 days CVE reserved
08/11/2025 +0 days VulDB entry created
08/11/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.yugabyte.com
Status: Confirmed

CVE: CVE-2025-8866 (🔒)
GCVE (CVE): GCVE-0-2025-8866
GCVE (VulDB): GCVE-100-319438

Entryinfo

Created: 08/11/2025 20:21
Changes: 08/11/2025 20:21 (67)
Complete: 🔍
Cache ID: 216::103

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