CVE-2026-82265

MEDIUM 6.5

Zipkin Unauthenticated Spring Boot Actuator Endpoints Exposure

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-306
Vendor	openzipkin
Product	zipkin
Published	Aug 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

openzipkin / zipkin

0 ≤ 3.6.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openzipkin/zipkin/issues/3835 github.com: https://github.com/openzipkin/zipkin github.com: https://github.com/openzipkin/zipkin/blob/878ce2a1fad54ca941d17fdcf2e1d924b148eb1f/zipkin-server/src/main/resources/zipkin-server-shared.yml vulncheck.com: https://www.vulncheck.com/advisories/zipkin-unauthenticated-spring-boot-actuator-endpoints-exposure

Credits

🔍 George Chen