CVE-2026-67331

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-01. A secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

better-auth SCIM versions from 1.5.0 before 1.7.0-beta.4 fail to bind non-organization SCIM providers to their creator by default, allowing authenticated users to manage other users' providers. Attackers can regenerate SCIM bearer tokens, invalidate legitimate tokens, and authenticate to SCIM API routes with the attacker-controlled token.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
53
EG Risk 53/100CISA 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
Severity83% × 45%
Exploitation40% × 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
0.4%
EPSS %ILE
30th
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 Aug 1, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/better-auth-scim-before-beta-4-authorization-bypass
github Patch Available🟡 PoC Available

@better-auth/scim: on single tenant use cases authenticated user can regenerate SCIM provider token · Advisory · better-auth/better-auth · GitHub

https://github.com/better-auth/better-auth/security/advisories/GHSA-j8v8-g9cx-5qf4

Vendor Advisories for CVE-2026-67331(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@better-auth/scim—
  • 1.5.0 up to 1.7.0-beta.4: fixed in 1.7.0-beta.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 83× 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 211 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Same product

1 shown

npm:@better-auth/scim

Frequently asked(5)

What is CVE-2026-67331?
CVE-2026-67331 is a high vulnerability published on August 1, 2026. better-auth SCIM versions from 1.5.0 before 1.7.0-beta.4 fail to bind non-organization SCIM providers to their creator by default, allowing authenticated users to manage other users' providers. Attackers can regenerate SCIM bearer tokens, invalidate legitimate tokens, and authenticate to SCIM API…
When was CVE-2026-67331 disclosed?
CVE-2026-67331 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-2026-67331 actively exploited?
CVE-2026-67331 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67331?
CVE-2026-67331 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-67331?
A fix for CVE-2026-67331 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-67331 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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