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    2 vulnerabilities found for scim by better-auth

    CVE-2026-67331 (GCVE-0-2026-67331)

    Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 17:46
    VLAI
    Title
    better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass
    Summary
    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.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
    8.3 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    better-auth scim Affected: 1.5.0 , < 1.7.0-beta.4 (semver)
    Unaffected: 1.7.0-beta.4 (semver)
    		Create a notification for this product.
    Date Public
    2026-05-31 00:00
    Credits
    Jvr2022
    Show details on NVD website
    To clipboard 

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    CVE-2026-67330 (GCVE-0-2026-67330)

    Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 15:38
    VLAI
    Title
    better-auth SCIM 1.4.0-beta.27 through 1.6.21 Account Takeover via Provider-ID Collision
    Summary
    @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).
    Severity
    9.4 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    Assigner
    References
    Impacted products
    Vendor Product Version
    better-auth scim Affected: 1.4.0-beta.27 , < * (semver)
    		Create a notification for this product.
    better-auth scim Affected: 1.7.0-beta.0 , < * (semver)
    		Create a notification for this product.
    Date Public
    2026-06-26 00:00
    Show details on NVD website
    To clipboard 

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