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

Medium 6.5 Published Updated

Unauthenticated access to management endpoints allows attackers to read configuration and modify log levels, bypassing API authentication.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-73245?

CVE-2026-73245 is a medium-severity missing authorization vulnerability in kestra-io kestra, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-306

Which versions are affected by CVE-2026-73245?

2 open source packages ship an affected version, including io.kestra:kestra.

PackageAffectedFixed in
io.kestra:kestra MavenAll versions2.0.0
io.kestra:kestra MavenAll versions2.0.0

How do I fix CVE-2026-73245?

Upgrade io.kestra:kestra to 2.0.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-73245 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73245 exists.

Sources

Also known as GHSA-hpj9-grjp-7vc7.

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