Vulnerability · Published Aug 28, 2026 · Assigned by VulnCheck
CVE-2026-82265Zipkin Unauthenticated Spring Boot Actuator Endpoints Exposure
Medium 6.5
In plain English
A medium-severity missing authentication in zipkin from openzipkin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 60.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Zipkin through 3.6.1 exposes Spring Boot Actuator endpoints on the tracing API port without authentication, allowing unauthenticated attackers to access sensitive information. Attackers can read environment variables, bean configurations, and storage credentials via actuator endpoints, or modify log levels to suppress logging.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| openzipkin | zipkin | 0 – through 3.6.1 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- GitHub Issue #3835 issue-tracking
- https://github.com/openzipkin/zipkin product
- Vulnerable code: zipkin-server-shared.yml technical-description
- VulnCheck Advisory: Zipkin Unauthenticated Spring Boot Actuator Endpoints Exposure third-party-advisory