GHSA-7vf8-2cr6-54mfPublished

Argo Workflows: Exposure of artifact repository credentials

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cve-program · CVE-2026-42295

Published

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, the workflow executor logs all artifact repository credentials (S3 access keys, secret keys, GCS service account keys, Azure account keys, Git passwords, etc.) in plaintext on artifact operation. Any user with read access to workflow pod logs can extract these credentials. This issue has been patched in version 4.0.5.

Source published: 9 May 2026 03:48:02 UTC
Source modified: 11 May 2026 14:47:01 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

euvd · EUVD-2026-28893

Published

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datePublished: May 9, 2026, 3:48:02 AM

dateUpdated: May 11, 2026, 2:47:01 PM

Source published: May 9, 2026, 3:48:02 AM (timezone not stated)
Source modified: May 11, 2026, 2:47:01 PM (timezone not stated)
Saved here: 13 Nov 2026 12:02:59 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 4.0 · 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

nvd · CVE-2026-42295

Published

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NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-522

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published: 2026-05-09T04:16:25.367

lastModified: 2026-07-24T21:10:00.143

1 source CPE criteria · context only

cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 9 May 2026 04:16:25 UTC
Source modified: 24 Jul 2026 21:10:00 UTC
Saved here: 25 Oct 2026 10:17:10 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Primary · 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

osv · GHSA-7vf8-2cr6-54mf

Published

### Summary The workflow executor logs all artifact repository credentials (S3 access keys, secret keys, GCS service account keys, Azure account keys, Git passwords, etc.) in plaintext on artifact operation. Any user with read access to workflow pod logs can extract these credentials. **Note:** This is an incomplete fix of [CVE-2025-62157](https://github.com/argoproj/argo-workflows/security/advisories/GHSA-c2hv-4pfj-mm2r) ### Details The logging driver passes the entire ArtifactDriver struct to the structured logger, for example: https://github.com/argoproj/argo-workflows/blob/59f1089b9875723ddffd524513e6bd5cb37e5e31/workflow/artifacts/logging/driver.go#L24 Exposed credential fields: - S3 (workflow/artifacts/s3/s3.go): AccessKey, SecretKey, SessionToken, ServerSideCustomerKey - OSS (workflow/artifacts/oss/oss.go): AccessKey, SecretKey, SecurityToken - GCS (workflow/artifacts/gcs/gcs.go): ServiceAccountKey ### PoC 1. Create template ```yml apiVersion: argoproj.io/v1alpha1 kind: Workflow metadata: name: cred-leak-test namespace: argo spec: entrypoint: main templates: - name: main container: image: alpine:3.13 command: [sh, -c] args: ["echo 'hello' > /tmp/output.txt"] outputs: artifacts: - name: output path: /tmp/output.txt s3: endpoint: minio:9000 insecure: true bucket: my-bucket key: test-output.txt accessKeySecret: name: my-minio-cred key: accesskey secretKeySecret: name: my-minio-cred key: secretkey ``` 2. Then check the logs `kubectl -n argo logs "cred-leak-test" -c wait` <img width="1248" height="322" alt="image" src="https://github.com/user-attachments/assets/a5cf6d66-7d67-408d-8583-27d11ecf1507" /> ### Impact Any user with Kubernetes RBAC permissions to read pod logs in the workflow namespace can extract artifact repository credentials.

Source published: 4 May 2026 20:12:01 UTC
Source modified: 10 Sep 2026 03:50:46 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Publisher rating · HIGH

osv · GO-2026-5235

Published

Argo vulnerable to exposure of artifact repository credentials in github.com/argoproj/argo-workflows

Source published: 25 Jun 2026 18:43:15 UTC
Source modified: 2 Jul 2026 14:44:22 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.