CVE-2026-53515

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Source

https://cve.org/CVERecord?id=CVE-2026-53515

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53515.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-53515

Aliases

GHSA-gv74-j8m3-fg5f

Published

2026-07-15T17:27:00Z

Modified

2026-10-28T02:30:57Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N CVSS Calculator

Summary

Better Auth: Privilege escalation via SSO provider registration: missing admin role check in @better-auth/sso

Details

Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 until 1.6.11, the @better-auth/sso plugin's POST /sso/register endpoint lets any organization member attach a new SSO provider to that organization because registerSSOProvider checks only for a membership row and does not require an owner or admin role, allowing attacker-controlled OIDC or SAML providers to drive /sso/callback/{providerId} organization provisioning. This issue is fixed in version 1.6.11.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269",
        "CWE-285",
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53515.json"
}

References

Affected packages

Git / github.com/better-auth/better-auth

Affected ranges

Type

GIT

Repo

https://github.com/better-auth/better-auth

Events

Introduced

08d92952ab827d6201fe756f4c8d4d921471c0d9

Fixed

f41514ef07cfafc5dbf463bd1500aee6575d88a7

Fixed

86765f1597378f5c3deed1b80ca91faac0a6bf00

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "1.2.10"
                },
                {
                    "fixed": "1.6.11"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "86765f1597378f5c3deed1b80ca91faac0a6bf00"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v1.6.11",
            "range": [
                {
                    "fixed": "f41514ef07cfafc5dbf463bd1500aee6575d88a7"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

@better-auth/api-key@1.*

@better-auth/api-key@1.6.0

@better-auth/api-key@1.6.1

@better-auth/api-key@1.6.10

@better-auth/api-key@1.6.2

@better-auth/api-key@1.6.3

@better-auth/api-key@1.6.4

@better-auth/api-key@1.6.5

@better-auth/api-key@1.6.6

@better-auth/api-key@1.6.7

@better-auth/api-key@1.6.8

@better-auth/api-key@1.6.9

@better-auth/cli@1.*

@better-auth/cli@1.3.4

@better-auth/core@1.*

@better-auth/core@1.6.0

@better-auth/core@1.6.1

@better-auth/core@1.6.10

@better-auth/core@1.6.2

@better-auth/core@1.6.3

@better-auth/core@1.6.4

@better-auth/core@1.6.5

@better-auth/core@1.6.6

@better-auth/core@1.6.7

@better-auth/core@1.6.8

@better-auth/core@1.6.9

@better-auth/drizzle-adapter@1.*

@better-auth/drizzle-adapter@1.6.0

@better-auth/drizzle-adapter@1.6.1

@better-auth/drizzle-adapter@1.6.10

@better-auth/drizzle-adapter@1.6.2

@better-auth/drizzle-adapter@1.6.3

@better-auth/drizzle-adapter@1.6.4

@better-auth/drizzle-adapter@1.6.5

@better-auth/drizzle-adapter@1.6.6

@better-auth/drizzle-adapter@1.6.7

@better-auth/drizzle-adapter@1.6.8

@better-auth/drizzle-adapter@1.6.9

@better-auth/electron@1.*

@better-auth/electron@1.6.0

@better-auth/electron@1.6.1

@better-auth/electron@1.6.10

@better-auth/electron@1.6.2

@better-auth/electron@1.6.3

@better-auth/electron@1.6.4

@better-auth/electron@1.6.5

@better-auth/electron@1.6.6

@better-auth/electron@1.6.7

@better-auth/electron@1.6.8

@better-auth/electron@1.6.9

@better-auth/expo@1.*

@better-auth/expo@1.3.4

@better-auth/expo@1.6.0

@better-auth/expo@1.6.1

@better-auth/expo@1.6.10

@better-auth/expo@1.6.2

@better-auth/expo@1.6.3

@better-auth/expo@1.6.4

@better-auth/expo@1.6.5

@better-auth/expo@1.6.6

@better-auth/expo@1.6.7

@better-auth/expo@1.6.8

@better-auth/expo@1.6.9

@better-auth/i18n@1.*

@better-auth/i18n@1.6.0

@better-auth/i18n@1.6.1

@better-auth/i18n@1.6.10

@better-auth/i18n@1.6.2

@better-auth/i18n@1.6.3

@better-auth/i18n@1.6.4

@better-auth/i18n@1.6.5

@better-auth/i18n@1.6.6

@better-auth/i18n@1.6.7

@better-auth/i18n@1.6.8

@better-auth/i18n@1.6.9

@better-auth/kysely-adapter@1.*

@better-auth/kysely-adapter@1.6.0

@better-auth/kysely-adapter@1.6.1

@better-auth/kysely-adapter@1.6.10

@better-auth/kysely-adapter@1.6.2

@better-auth/kysely-adapter@1.6.3

@better-auth/kysely-adapter@1.6.4

@better-auth/kysely-adapter@1.6.5

@better-auth/kysely-adapter@1.6.6

@better-auth/kysely-adapter@1.6.7

@better-auth/kysely-adapter@1.6.8

@better-auth/kysely-adapter@1.6.9

@better-auth/memory-adapter@1.*

@better-auth/memory-adapter@1.6.0

@better-auth/memory-adapter@1.6.1

@better-auth/memory-adapter@1.6.10

@better-auth/memory-adapter@1.6.2

@better-auth/memory-adapter@1.6.3

@better-auth/memory-adapter@1.6.4

@better-auth/memory-adapter@1.6.5

@better-auth/memory-adapter@1.6.6

@better-auth/memory-adapter@1.6.7

@better-auth/memory-adapter@1.6.8

@better-auth/memory-adapter@1.6.9

@better-auth/mongo-adapter@1.*

@better-auth/mongo-adapter@1.6.0

@better-auth/mongo-adapter@1.6.1

@better-auth/mongo-adapter@1.6.10

@better-auth/mongo-adapter@1.6.2

@better-auth/mongo-adapter@1.6.3

@better-auth/mongo-adapter@1.6.4

@better-auth/mongo-adapter@1.6.5

@better-auth/mongo-adapter@1.6.6

@better-auth/mongo-adapter@1.6.7

@better-auth/mongo-adapter@1.6.8

@better-auth/mongo-adapter@1.6.9

@better-auth/oauth-provider@1.*

@better-auth/oauth-provider@1.6.0

@better-auth/oauth-provider@1.6.1

@better-auth/oauth-provider@1.6.10

@better-auth/oauth-provider@1.6.2

@better-auth/oauth-provider@1.6.3

@better-auth/oauth-provider@1.6.4

@better-auth/oauth-provider@1.6.5

@better-auth/oauth-provider@1.6.6

@better-auth/oauth-provider@1.6.7

@better-auth/oauth-provider@1.6.8

@better-auth/oauth-provider@1.6.9

@better-auth/passkey@1.*

@better-auth/passkey@1.6.0

@better-auth/passkey@1.6.1

@better-auth/passkey@1.6.10

@better-auth/passkey@1.6.2

@better-auth/passkey@1.6.3

@better-auth/passkey@1.6.4

@better-auth/passkey@1.6.5

@better-auth/passkey@1.6.6

@better-auth/passkey@1.6.7

@better-auth/passkey@1.6.8

@better-auth/passkey@1.6.9

@better-auth/prisma-adapter@1.*

@better-auth/prisma-adapter@1.6.0

@better-auth/prisma-adapter@1.6.1

@better-auth/prisma-adapter@1.6.10

@better-auth/prisma-adapter@1.6.2

@better-auth/prisma-adapter@1.6.3

@better-auth/prisma-adapter@1.6.4

@better-auth/prisma-adapter@1.6.5

@better-auth/prisma-adapter@1.6.6

@better-auth/prisma-adapter@1.6.7

@better-auth/prisma-adapter@1.6.8

@better-auth/prisma-adapter@1.6.9

@better-auth/redis-storage@1.*

@better-auth/redis-storage@1.6.0

@better-auth/redis-storage@1.6.1

@better-auth/redis-storage@1.6.10

@better-auth/redis-storage@1.6.2

@better-auth/redis-storage@1.6.3

@better-auth/redis-storage@1.6.4

@better-auth/redis-storage@1.6.5

@better-auth/redis-storage@1.6.6

@better-auth/redis-storage@1.6.7

@better-auth/redis-storage@1.6.8

@better-auth/redis-storage@1.6.9

@better-auth/scim@1.*

@better-auth/scim@1.6.0

@better-auth/scim@1.6.1

@better-auth/scim@1.6.10

@better-auth/scim@1.6.2

@better-auth/scim@1.6.3

@better-auth/scim@1.6.4

@better-auth/scim@1.6.5

@better-auth/scim@1.6.6

@better-auth/scim@1.6.7

@better-auth/scim@1.6.8

@better-auth/scim@1.6.9

@better-auth/sso@1.*

@better-auth/sso@1.3.4

@better-auth/sso@1.6.0

@better-auth/sso@1.6.1

@better-auth/sso@1.6.10

@better-auth/sso@1.6.2

@better-auth/sso@1.6.3

@better-auth/sso@1.6.4

@better-auth/sso@1.6.5

@better-auth/sso@1.6.6

@better-auth/sso@1.6.7

@better-auth/sso@1.6.8

@better-auth/sso@1.6.9

@better-auth/stripe@1.*

@better-auth/stripe@1.3.4

@better-auth/stripe@1.6.0

@better-auth/stripe@1.6.1

@better-auth/stripe@1.6.10

@better-auth/stripe@1.6.2

@better-auth/stripe@1.6.3

@better-auth/stripe@1.6.4

@better-auth/stripe@1.6.5

@better-auth/stripe@1.6.6

@better-auth/stripe@1.6.7

@better-auth/stripe@1.6.8

@better-auth/stripe@1.6.9

@better-auth/telemetry@1.*

@better-auth/telemetry@1.6.0

@better-auth/telemetry@1.6.1

@better-auth/telemetry@1.6.10

@better-auth/telemetry@1.6.2

@better-auth/telemetry@1.6.3

@better-auth/telemetry@1.6.4

@better-auth/telemetry@1.6.5

@better-auth/telemetry@1.6.6

@better-auth/telemetry@1.6.7

@better-auth/telemetry@1.6.8

@better-auth/telemetry@1.6.9

@better-auth/test-utils@1.*

@better-auth/test-utils@1.6.0

@better-auth/test-utils@1.6.1

@better-auth/test-utils@1.6.10

@better-auth/test-utils@1.6.2

@better-auth/test-utils@1.6.3

@better-auth/test-utils@1.6.4

@better-auth/test-utils@1.6.5

@better-auth/test-utils@1.6.6

@better-auth/test-utils@1.6.7

@better-auth/test-utils@1.6.8

@better-auth/test-utils@1.6.9

auth@1.*

auth@1.6.0

auth@1.6.1

auth@1.6.10

auth@1.6.2

auth@1.6.3

auth@1.6.4

auth@1.6.5

auth@1.6.6

auth@1.6.7

auth@1.6.8

auth@1.6.9

better-auth@1.*

better-auth@1.3.4

better-auth@1.6.0

better-auth@1.6.1

better-auth@1.6.10

better-auth@1.6.2

better-auth@1.6.3

better-auth@1.6.4

better-auth@1.6.5

better-auth@1.6.6

better-auth@1.6.7

better-auth@1.6.8

better-auth@1.6.9

v1.*

v1.2.10

v1.2.11

v1.2.12

v1.3.0

v1.3.0-beta.10

v1.3.0-beta.11

v1.3.1

v1.3.1-beta.1

v1.3.10

v1.3.11

v1.3.2

v1.3.3

v1.3.5-beta.1

v1.3.5-beta.2

v1.3.5-beta.3

v1.3.5-beta.4

v1.3.5-beta.5

v1.3.5-beta.6

v1.3.5-beta.7

v1.3.6

v1.3.7-beta.2

v1.3.7-beta.3

v1.3.8

v1.3.8-beta.1

v1.3.9

v1.4.0-beta.1

v1.4.0-beta.10

v1.4.0-beta.11

v1.4.0-beta.12

v1.4.0-beta.13

v1.4.0-beta.14

v1.4.0-beta.15

v1.4.0-beta.16

v1.4.0-beta.17

v1.4.0-beta.18

v1.4.0-beta.19

v1.4.0-beta.2

v1.4.0-beta.20

v1.4.0-beta.21

v1.4.0-beta.22

v1.4.0-beta.23

v1.4.0-beta.24

v1.4.0-beta.25

v1.4.0-beta.26

v1.4.0-beta.27

v1.4.0-beta.3

v1.4.0-beta.4

v1.4.0-beta.5

v1.4.0-beta.6

v1.4.0-beta.7

v1.4.0-beta.8

v1.4.0-beta.9

v1.4.1-beta.1

v1.4.2-beta.2

v1.4.2-beta.3

v1.4.2-beta.4

v1.4.2-beta.5

v1.4.4-beta.1

v1.4.4-beta.3

v1.4.5-beta.1

v1.4.5-beta.2

v1.4.6-beta.1

v1.4.6-beta.2

v1.4.6-beta.3

v1.4.7-beta.1

v1.4.7-beta.2

v1.4.7-beta.3

v1.4.7-beta.4

v1.4.8-beta.1

v1.4.8-beta.2

v1.4.8-beta.3

v1.4.8-beta.4

v1.4.8-beta.5

v1.4.8-beta.6

v1.4.8-beta.7

v1.5.0-beta.1

v1.5.0-beta.10

v1.5.0-beta.11

v1.5.0-beta.12

v1.5.0-beta.13

v1.5.0-beta.14

v1.5.0-beta.15

v1.5.0-beta.16

v1.5.0-beta.17

v1.5.0-beta.18

v1.5.0-beta.19

v1.5.0-beta.2

v1.5.0-beta.20

v1.5.0-beta.3

v1.5.0-beta.4

v1.5.0-beta.5

v1.5.0-beta.6

v1.5.0-beta.7

v1.5.0-beta.8

v1.5.0-beta.9

v1.5.1-beta.1

v1.5.1-beta.2

v1.5.1-beta.3

v1.5.1-beta.4

v1.5.7-beta.1

v1.6.0

v1.6.1

v1.6.10

v1.6.2

v1.6.3

v1.6.4

v1.6.5

v1.6.6

v1.6.7

v1.6.8

v1.6.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53515.json"