CVE-2026-67349

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 31, 2026

Advisory Details (4)

Auto-updated Jul 30, 2026
Patch available. Sources: github_pr, github_commit.
generic

OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/opencost-unauthenticated-helm-values-exposure-and-admin-bypass
github_commit Patch Available

commit a49a25bc2e0d (opencost/opencost)

Patch available: opencost/opencost v1.121.0 (contains commit a49a25bc2e0d)

https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6ae851b
github_pr Patch Available

deactivate endpoints unless admin token set

Patch available: opencost/opencost v1.121.0 (PR #3910 merged 2026-07-09)

https://github.com/opencost/opencost/pull/3910
generic

Unauthenticated Helm Values Disclosure and Admin API Fail-Open · Issue #3893 · opencost/opencost · GitHub

https://github.com/opencost/opencost/issues/3893

Vendor Advisories for CVE-2026-67349(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 81× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 09:15 UTCGHSA enrichment
  2. 2026-08-19 20:17 UTCEG score recompute
  3. 2026-08-19 20:17 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 07:22 UTCGHSA enrichment
  6. 2026-08-18 18:28 UTCEG score recompute
  7. 2026-08-18 18:28 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-18 04:38 UTCGHSA enrichment
  10. 2026-08-17 15:43 UTCEG score recompute
  11. 2026-08-17 15:43 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 02:49 UTCEG score recompute
  14. 2026-08-17 02:49 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 13:55 UTCEG score recompute
  17. 2026-08-16 13:55 UTCGHSA enrichment
  18. 2026-08-16 01:01 UTCGHSA enrichment
  19. 2026-08-15 12:07 UTCEG score recompute
  20. 2026-08-15 12:07 UTCGHSA enrichment
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 23:12 UTCGHSA enrichment
  23. 2026-08-14 10:18 UTCEG score recompute
  24. 2026-08-14 10:18 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
Show 56 more
  1. 2026-08-13 21:24 UTCGHSA enrichment
  2. 2026-08-13 08:29 UTCGHSA enrichment
  3. 2026-08-12 19:35 UTCEG score recompute
  4. 2026-08-12 19:35 UTCGHSA enrichment
  5. 2026-08-12 13:51 UTCEPSS rescore
  6. 2026-08-12 06:41 UTCGHSA enrichment
  7. 2026-08-11 17:47 UTCEG score recompute
  8. 2026-08-11 17:47 UTCGHSA enrichment
  9. 2026-08-11 04:50 UTCEG score recompute
  10. 2026-08-11 04:50 UTCGHSA enrichment
  11. 2026-08-11 00:00 UTCEPSS rescore
  12. 2026-08-10 15:56 UTCGHSA enrichment
  13. 2026-08-10 02:46 UTCGHSA enrichment
  14. 2026-08-09 13:52 UTCEG score recompute
  15. 2026-08-09 13:52 UTCGHSA enrichment
  16. 2026-08-09 13:47 UTCEPSS rescore
  17. 2026-08-09 00:58 UTCEG score recompute
  18. 2026-08-09 00:58 UTCGHSA enrichment
  19. 2026-08-08 16:37 UTCEPSS rescore
  20. 2026-08-08 12:04 UTCGHSA enrichment
  21. 2026-08-07 23:09 UTCEG score recompute
  22. 2026-08-07 23:09 UTCGHSA enrichment
  23. 2026-08-07 10:15 UTCGHSA enrichment
  24. 2026-08-06 21:21 UTCEG score recompute
  25. 2026-08-06 21:21 UTCGHSA enrichment
  26. 2026-08-06 13:47 UTCEPSS rescore
  27. 2026-08-06 08:26 UTCGHSA enrichment
  28. 2026-08-05 19:32 UTCEG score recompute
  29. 2026-08-05 19:32 UTCGHSA enrichment
  30. 2026-08-05 19:17 UTCEPSS rescore
  31. 2026-08-05 19:17 UTCEPSS rescore
  32. 2026-08-05 06:37 UTCGHSA enrichment
  33. 2026-08-04 17:42 UTCEG score recompute
  34. 2026-08-04 17:41 UTCGHSA enrichment
  35. 2026-08-04 15:10 UTCEPSS rescore
  36. 2026-08-04 10:39 UTCEPSS rescore
  37. 2026-08-04 04:44 UTCGHSA enrichment
  38. 2026-08-03 15:49 UTCGHSA enrichment
  39. 2026-08-03 02:55 UTCGHSA enrichment
  40. 2026-08-02 14:01 UTCEG score recompute
  41. 2026-08-02 14:01 UTCGHSA enrichment
  42. 2026-08-02 02:27 UTCEPSS rescore
  43. 2026-08-02 01:07 UTCGHSA enrichment
  44. 2026-08-01 12:13 UTCEG score recompute
  45. 2026-08-01 12:13 UTCGHSA enrichment
  46. 2026-08-01 04:16 UTCEPSS rescore
  47. 2026-07-31 23:18 UTCEG score recompute
  48. 2026-07-31 23:18 UTCGHSA enrichment
  49. 2026-07-31 12:00 UTCEG score recompute
  50. 2026-07-31 12:00 UTCGHSA enrichment
  51. 2026-07-31 05:47 UTCGHSA enrichment
  52. 2026-07-30 16:52 UTCEG score recompute
  53. 2026-07-30 16:52 UTCGHSA enrichment
  54. 2026-07-30 15:31 UTCEG score recompute
  55. 2026-07-30 14:56 UTCEG score recompute
  56. 2026-07-30 14:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67349?
CVE-2026-67349 is a high vulnerability published on July 30, 2026. OpenCost before 1.121.0 fails to authenticate the GET /helmValues endpoint, exposing base64-decoded HELMVALUES environment variable containing cloud provider credentials. Additionally, adminAuthMiddleware fails open when ADMINTOKEN is unset, allowing unauthenticated attackers to modify GCP service…
When was CVE-2026-67349 disclosed?
CVE-2026-67349 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67349 actively exploited?
CVE-2026-67349 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.9% of all scored CVEs.
What is the CVSS score of CVE-2026-67349?
CVE-2026-67349 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-67349?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67349, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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