CVE-2026-67330

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-01. A secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

@better-auth/scim (a better-auth plugin) versions >= 1.4.0-beta.27 through <= 1.6.21 and >= 1.7.0-beta.0 through <= 1.7.0-beta.9 contain an authorization bypass. SCIM token issuance did not reject provider IDs already used by existing SSO, SAML, OIDC, generic OAuth, or social account providers, and the same logical provider ID was used for both SCIM provider configuration and account ownership. An authenticated user could mint a SCIM token whose provider ID collided with an existing provider namespace, causing SCIM user routes to resolve account rows the token never provisioned. This allowed listing, reading, updating (including rewriting global profile/email fields without uniqueness checks), and deleting global user accounts and sessions, resulting in account takeover and unauthorized deprovisioning. Fixed in 1.6.22 and 1.7.0-beta.10 (1.7.0-rc.0).

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 1, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 29, 2026
Patch available. Sources: github.
generic

better-auth SCIM 1.4.0-beta.27 through 1.6.21 Account Takeover via Provider-ID Collision | Advisories | VulnCheck

https://www.vulncheck.com/advisories/better-auth-scim-beta-27-through-account-takeover-via-provider-id-collision
github Patch Available

@better-auth/scim: SCIM tokens can take over users they do not own, and deactivation fails · Advisory · better-auth/better-auth · GitHub

https://github.com/better-auth/better-auth/security/advisories/GHSA-rjg6-39jm-rgg4

Vendor Advisories for CVE-2026-67330(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 23× in last 7d / 132× 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.

Showing the most recent 100 of 376 total refreshes for this CVE.

  1. 2026-10-04 23:50 UTCEG score recompute
  2. 2026-10-04 23:50 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 12:29 UTCGHSA enrichment
  5. 2026-10-04 06:26 UTCEG score recompute
  6. 2026-10-04 06:26 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-03 02:46 UTCEG score recompute
  9. 2026-10-03 02:46 UTCGHSA enrichment
  10. 2026-10-02 17:56 UTCEPSS rescore
  11. 2026-10-02 16:47 UTCGHSA enrichment
  12. 2026-10-02 10:30 UTCEG score recompute
  13. 2026-10-02 10:30 UTCGHSA enrichment
  14. 2026-10-01 19:50 UTCEPSS rescore
  15. 2026-10-01 15:05 UTCGHSA enrichment
  16. 2026-10-01 11:01 UTCGHSA enrichment
  17. 2026-10-01 06:56 UTCGHSA enrichment
  18. 2026-10-01 02:43 UTCEG score recompute
  19. 2026-10-01 02:43 UTCGHSA enrichment
  20. 2026-09-30 15:03 UTCEPSS rescore
  21. 2026-09-29 06:47 UTCEG score recompute
  22. 2026-09-29 06:47 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 12:52 UTCGHSA enrichment
  25. 2026-09-28 07:08 UTCGHSA enrichment
Show 75 more
  1. 2026-09-28 02:52 UTCGHSA enrichment
  2. 2026-09-27 18:23 UTCEG score recompute
  3. 2026-09-27 18:23 UTCGHSA enrichment
  4. 2026-09-27 13:48 UTCEPSS rescore
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-25 09:19 UTCGHSA enrichment
  7. 2026-09-25 04:51 UTCEG score recompute
  8. 2026-09-25 04:51 UTCGHSA enrichment
  9. 2026-09-24 10:03 UTCGHSA enrichment
  10. 2026-09-24 05:59 UTCGHSA enrichment
  11. 2026-09-24 01:30 UTCGHSA enrichment
  12. 2026-09-23 21:26 UTCEG score recompute
  13. 2026-09-23 21:26 UTCGHSA enrichment
  14. 2026-09-23 17:54 UTCEPSS rescore
  15. 2026-09-23 16:43 UTCGHSA enrichment
  16. 2026-09-23 09:45 UTCGHSA enrichment
  17. 2026-09-23 05:41 UTCGHSA enrichment
  18. 2026-09-23 01:37 UTCGHSA enrichment
  19. 2026-09-22 21:32 UTCEG score recompute
  20. 2026-09-22 21:32 UTCGHSA enrichment
  21. 2026-09-22 13:16 UTCGHSA enrichment
  22. 2026-09-22 07:15 UTCEG score recompute
  23. 2026-09-22 07:15 UTCGHSA enrichment
  24. 2026-09-20 21:12 UTCEG score recompute
  25. 2026-09-20 21:12 UTCGHSA enrichment
  26. 2026-09-20 20:16 UTCEPSS rescore
  27. 2026-09-20 11:08 UTCGHSA enrichment
  28. 2026-09-20 03:35 UTCGHSA enrichment
  29. 2026-09-19 23:31 UTCEG score recompute
  30. 2026-09-19 23:31 UTCGHSA enrichment
  31. 2026-09-19 13:44 UTCGHSA enrichment
  32. 2026-09-19 08:01 UTCGHSA enrichment
  33. 2026-09-19 03:57 UTCGHSA enrichment
  34. 2026-09-18 22:25 UTCEG score recompute
  35. 2026-09-18 22:25 UTCGHSA enrichment
  36. 2026-09-18 19:28 UTCEPSS rescore
  37. 2026-09-18 17:53 UTCGHSA enrichment
  38. 2026-09-18 13:45 UTCGHSA enrichment
  39. 2026-09-18 09:40 UTCGHSA enrichment
  40. 2026-09-18 05:19 UTCGHSA enrichment
  41. 2026-09-18 01:15 UTCEG score recompute
  42. 2026-09-18 01:15 UTCGHSA enrichment
  43. 2026-09-17 09:33 UTCGHSA enrichment
  44. 2026-09-17 05:28 UTCGHSA enrichment
  45. 2026-09-17 01:23 UTCEG score recompute
  46. 2026-09-17 01:23 UTCGHSA enrichment
  47. 2026-09-16 14:08 UTCEPSS rescore
  48. 2026-09-16 11:19 UTCGHSA enrichment
  49. 2026-09-16 05:24 UTCEG score recompute
  50. 2026-09-16 05:24 UTCGHSA enrichment
  51. 2026-09-16 05:15 UTCEPSS rescore
  52. 2026-09-15 07:05 UTCEG score recompute
  53. 2026-09-15 07:05 UTCGHSA enrichment
  54. 2026-09-15 02:58 UTCGHSA enrichment
  55. 2026-09-14 14:23 UTCGHSA enrichment
  56. 2026-09-14 10:13 UTCGHSA enrichment
  57. 2026-09-14 05:39 UTCGHSA enrichment
  58. 2026-09-14 01:35 UTCGHSA enrichment
  59. 2026-09-13 21:30 UTCGHSA enrichment
  60. 2026-09-13 17:23 UTCEG score recompute
  61. 2026-09-13 17:23 UTCGHSA enrichment
  62. 2026-09-13 13:18 UTCGHSA enrichment
  63. 2026-09-13 09:14 UTCGHSA enrichment
  64. 2026-09-13 05:09 UTCGHSA enrichment
  65. 2026-09-13 01:05 UTCGHSA enrichment
  66. 2026-09-12 21:01 UTCGHSA enrichment
  67. 2026-09-12 16:57 UTCEG score recompute
  68. 2026-09-12 16:57 UTCGHSA enrichment
  69. 2026-09-12 12:52 UTCGHSA enrichment
  70. 2026-09-12 08:47 UTCGHSA enrichment
  71. 2026-09-12 04:42 UTCGHSA enrichment
  72. 2026-09-12 00:31 UTCGHSA enrichment
  73. 2026-09-11 19:20 UTCGHSA enrichment
  74. 2026-09-11 14:55 UTCEG score recompute
  75. 2026-09-11 14:55 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67330?
CVE-2026-67330 is a critical vulnerability published on August 1, 2026. @better-auth/scim (a better-auth plugin) versions >= 1.4.0-beta.27 through <= 1.6.21 and >= 1.7.0-beta.0 through <= 1.7.0-beta.9 contain an authorization bypass. SCIM token issuance did not reject provider IDs already used by existing SSO, SAML, OIDC, generic OAuth, or social account providers, and…
When was CVE-2026-67330 disclosed?
CVE-2026-67330 was first published on August 1, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67330 actively exploited?
CVE-2026-67330 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67330?
CVE-2026-67330 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-67330?
A fix for CVE-2026-67330 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-67330 are linked in the Vendor Advisories panel on this page.

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