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CVE-2026-67349

OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.121.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

OpenCost before 1.121.0 fails to authenticate the GET /helmValues endpoint, exposing base64-decoded HELM_VALUES environment variable containing cloud provider credentials. Additionally, adminAuthMiddleware fails open when ADMIN_TOKEN is unset, allowing unauthenticated attackers to modify GCP service account keys via POST /serviceKey to redirect billing calls.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • opencost opencost

    fixed in 1.121.0

References 5

GitHub · opencost/opencost

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