REDHAT-BUG-2468443: High severity Argo Argo Workflows vulnerability
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, the Webhook Interceptor loads the entire request body into memory before authenticating the request or verifying its signature. This occurs on the /api/v1/events/ endpoint, which is publicly accessible (albeit intended for webhooks). An attacker can send a request with an extremely large body (e.g., multiple gigabytes), causing the Argo Server to allocate excessive memory, potentially leading to an Out-Of-Memory (OOM) crash and denial of service. This issue has been patched in versions 3.7.14 and 4.0.5.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Argo Workflowsto a version that resolves this vulnerability.Fixed in 3.7.14 - Upgrade
Upgrade
Argo Workflowsto a version that resolves this vulnerability.Fixed in 4.0.5 - Compensating control
Restrict public access to the /api/v1/events/ endpoint so it is reachable only from expected webhook sources (e.g., via network policies/firewall/IP allowlisting).
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2468443?
The severity of REDHAT-BUG-2468443 is high with a score of 7.
How do I fix REDHAT-BUG-2468443?
To fix REDHAT-BUG-2468443, upgrade Argo Workflows to version 3.7.14 or later, or to version 4.0.5 or later.
What systems are affected by REDHAT-BUG-2468443?
REDHAT-BUG-2468443 affects Argo Workflows versions prior to 3.7.14 and 4.0.5.
What type of vulnerability is REDHAT-BUG-2468443?
REDHAT-BUG-2468443 is a security vulnerability related to the handling of request bodies in the Webhook Interceptor.
Is there an exploit for REDHAT-BUG-2468443?
While specific exploits are not detailed, the vulnerability poses a risk due to improper request handling that could lead to various attack vectors.