CVE-2026-73245: Kestra: Unauthenticated management/actuator endpoints exposed on port 8081 (/env, /loggers) bypass API basic-auth

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-10-24
Weakness: CWE-306

Description

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0-rc6, Kestra's cli/src/main/resources/application.yml serves Micronaut management endpoints on port 8081 without authentication even when Basic Auth protects /api/v1/** on port 8080, allowing unauthenticated GET /env requests to disclose resolved configuration and POST /loggers/{name} requests to change runtime log levels. This issue is fixed in 2.0.0-rc6.

Affected products

kestra-io kestra: before 2.0.0-rc6

References

https://github.com/kestra-io/kestra/security/advisories/GHSA-hpj9-grjp-7vc7
https://github.com/kestra-io/kestra/security/advisories/GHSA-hpj9-grjp-7vc7

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