CVE-2026-82277 Argo Rollouts Dashboard Unauthenticated Mutating Operations

Critical 9.3 Published Updated

Unauthenticated attackers can perform mutating rollout operations via the dashboard, allowing unauthorized control over Kubernetes deployments.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82277?

CVE-2026-82277 is a critical missing authorization vulnerability in argoproj argo-rollouts, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Argo Rollouts dashboard through 1.10.0 binds to all interfaces and exposes mutating Rollout operations without authentication, authorization, or CSRF protection. Attackers on the same network can invoke PromoteRollout, AbortRollout, RestartRollout, SetRolloutImage, UndoRollout, and RetryRollout operations across all namespaces accessible to the operator's kubeconfig.

Weakness: CWE-306

Which versions are affected by CVE-2026-82277?

How do I fix CVE-2026-82277?

No fix has been published for CVE-2026-82277 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2026-82277 being exploited?

There is no known exploitation of CVE-2026-82277 in the wild and no public exploit code.

Sources

Also known as GHSA-366v-5xmx-36vh.

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