CVE-2026-45337

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Source
https://cve.org/CVERecord?id=CVE-2026-45337
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45337.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45337
Aliases
Published
2026-07-15T17:31:44.983Z
Modified
2026-07-17T03:46:33.506852238Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L CVSS Calculator
Summary
Better Auth: Device authorization approve and deny accept any authenticated session while the user code is pending
Details

Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the deviceAuthorization plugin treats any authenticated session as the owner of any pending device code because GET /device does not claim the row and POST /device/approve and POST /device/deny short-circuit when userId is unset, allowing an authenticated attacker who learns a valid user_code to bind the polling device to the attacker's account or deny the legitimate flow. This issue is fixed in version 1.6.11.

Database specific 
{
    "cwe_ids": [
        "CWE-285",
        "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45337.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

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

Affected ranges

Type
GIT
Repo
https://github.com/better-auth/better-auth
Events
Introduced
0e3f188020fa785d44d0019a3a3c8407a4cc8d5f
Fixed
99a254a79b59d5a3f5ca2123260118cddb5beed7
Fixed
f41514ef07cfafc5dbf463bd1500aee6575d88a7
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.6.0"
        },
        {
            "fixed": "1.6.11"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

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/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@1.6.0
@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@1.6.0
@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@1.6.0
@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@1.6.0
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.*
v1.6.0
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-2026-45337.json"