Description
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.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- argoproj / argo-workflows< 3.7.14 – < 3.7.14
- argoproj / argo-workflows>= 4.0.0, < 4.0.5 – >= 4.0.0, < 4.0.5
References
- VENDOR_ADVISORYhttps://github.com/argoproj/argo-workflows/security/advisories/GHSA-jcc8-g2q4-9fxq
- PATCHhttps://github.com/argoproj/argo-workflows/commit/7abb4de6c3599e2d5d960ba4d5de4cf1df109965
- PATCHhttps://github.com/argoproj/argo-workflows/releases/tag/v3.7.14
- PATCHhttps://github.com/argoproj/argo-workflows/releases/tag/v4.0.5