CVE-2025-8866: YugabyteDB Anywhere · Information Exposure
Affects YugabyteDB AnywhereSource CVE Database V5
Not known to be exploited · CVSS 5.1 Medium : upgrade to 2025.0.0 or 2.21.0 when convenient.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2025.0.0, 2.21.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/U:ClearExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Upgrade YugabyteDB Anywhere to 2025.0.0 or 2.21.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| YugabyteDB Inc YugabyteDB Anywhere | Affected
| Fixed in
|
AI-suggested
To mitigate this vulnerability, European organizations should: 1) Immediately restrict network access to the /metamaster/universe API endpoint by implementing network segmentation and firewall rules to limit access only to trusted administrative hosts. 2) Apply strict authentication and authorization controls on the YugabyteDB Anywhere management interfaces, ensuring that all API endpoints require proper credentials. 3) Monitor access logs for any unauthorized or suspicious attempts to access the vulnerable endpoint. 4) Deploy network intrusion detection systems (NIDS) to detect reconnaissance activities targeting YugabyteDB Anywhere components. 5) Stay updated with YugabyteDB Inc's security advisories and apply patches promptly once available. 6) Conduct security audits and penetration testing focusing on API endpoints to identify and remediate similar misconfigurations. 7) Consider using VPNs or zero-trust network access (ZTNA) solutions to further protect management interfaces from exposure to adjacent networks.
Description
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.