8.2
High
CVE-2026-42294 Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| argo-workflows 4.0 | 4.0.0 → < 4.0.5 | 4.0.5 |
| argo-workflows 3.7 | earliest → < 3.7.14 | 3.7.14 |
| Red Hat OpenShift AI (RHOAI) | Versions not published |
References
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
Other CVEs of argo-workflows
The 17 CVEs of argo-workflows →
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8.9
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CVE-2026-42296
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8.1
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CVE-2026-42295
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes
8.5
High