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CVE-2026-67349— OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass

CVSS 7.5 · High EPSS 0.29% · P21

Affected Version Matrix 1

VendorProductVersion RangeStatus
opencostopencost< 1.121.0affected
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I. Basic Information for CVE-2026-67349

Vulnerability Information
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Vulnerability Title
OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
opencostopencost 0 ~ 1.121.0 -

II. Public POCs for CVE-2026-67349

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7359 chars
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III. Intelligence Information for CVE-2026-67349

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Patches & Fixes for CVE-2026-67349 (2)

Vendor Advisories for CVE-2026-67349 (1)

News Coverage for CVE-2026-67349 (1)

Vendor Pages for CVE-2026-67349 (1)

IV. Related Vulnerabilities

Same weakness: CWE-306

V. Comments for CVE-2026-67349

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