Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N N H N N 8.7 .0029 21.1 —
AFFECTED Product Versions Fixed opencost unspecified —
TIMELINE Jul 29 Reserved by VulnCheck Jul 30 Published (CNA: VulnCheck) Jul 31 EXPLOIT PUBLISHED — CVE-2026-67349 (opencost). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| July 29, 2026 | Reserved | Reserved by VulnCheck |
| July 30, 2026 | Published | Published (CNA: VulnCheck) |
| July 31, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-67349 (opencost). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| opencost | opencost | — | — | — |
Authoritative record: CVE-2026-67349 at cve.org
Vendors: opencost
Weaknesses: CWE-306
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67349 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.