CVE-2026-28229
Argo Workflows has unauthorized access to Argo Workflows Template
Description
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 4.0.2 and 3.7.11, Workflow templates endpoints allow any client to retrieve WorkflowTemplates (and ClusterWorkflowTemplates). Any request with a Authorization: Bearer nothing token can leak sensitive template content, including embedded Secret manifests. This vulnerability is fixed in 4.0.2 and 3.7.11.
INFO
Published Date :
March 11, 2026, 4:16 p.m.
Last Modified :
March 20, 2026, 2:27 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Argo Workflows to 4.0.2 or later.
- Update Argo Workflows to 3.7.11 or later.
- Restrict access to workflow templates.
- Review existing workflow templates for exposed secrets.
Public PoC/Exploit Available at Github
CVE-2026-28229 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28229.
| URL | Resource |
|---|---|
| https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28229 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28229
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Cloudflare Worker that polls NVD daily for HIGH/CRITICAL CVEs and fires alerts to Telegram and Slack
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28229 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28229 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions from (including) 4.0.0 up to (excluding) 4.0.2 *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions up to (excluding) 3.7.11 OR *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions from (including) 4.0.0 up to (excluding) 4.0.2 *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions from (including) 3.7.0 up to (excluding) 3.7.11 -
Initial Analysis by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions from (including) 4.0.0 up to (excluding) 4.0.2 *cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* versions up to (excluding) 3.7.11 Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Mar. 11, 2026
Action Type Old Value New Value Added Description Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 4.0.2 and 3.7.11, Workflow templates endpoints allow any client to retrieve WorkflowTemplates (and ClusterWorkflowTemplates). Any request with a Authorization: Bearer nothing token can leak sensitive template content, including embedded Secret manifests. This vulnerability is fixed in 4.0.2 and 3.7.11. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-863 Added Reference https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5