Skip to content
Heist/ feed
Back to feed
Medium

better-auth Stale Sessions Persist After User Deletion

Type: advisorySources: OSV

better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionInDatabase is false. Attackers can reuse deleted user session tokens to maintain authentication for up to seven days after account deletion.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-67334
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 13:16 UTC · Revision 1

Source evidence

better-auth Stale Sessions Persist After User Deletion

core-osv · Original source

Published 1 Aug 2026, 12:22 UTC

better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionInDatabase is false. Attackers can reuse deleted user session tokens to maintain authentication for up to seven days after account deletion.

osv:CVE-2026-67334
Complete source record
{
  "id": "91122a48e277cee8dd1330b281f77cd6cbbc5b5b7d9b0178c89b154315ba1503",
  "url": "https://osv.dev/vulnerability/CVE-2026-67334",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "better-auth Stale Sessions Persist After User Deletion",
    "summary": "better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionInDatabase is false. Attackers can reuse deleted user session tokens to maintain authentication for up to seven days after account deletion.",
    "evidence": "osv:CVE-2026-67334",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-67334",
      "aliases": [
        "CVE-2026-67334",
        "GHSA-2vg6-77g8-24mp"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/better-auth/better-auth",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1dc573bca9e53c36f84f4dab1144e10f94066df1"
                },
                {
                  "fixed": "f41514ef07cfafc5dbf463bd1500aee6575d88a7"
                },
                {
                  "introduced": "0e3f188020fa785d44d0019a3a3c8407a4cc8d5f"
                },
                {
                  "fixed": "f41514ef07cfafc5dbf463bd1500aee6575d88a7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.3.4"
                      },
                      {
                        "fixed": "1.6.11"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.6.0"
                      },
                      {
                        "fixed": "1.6.11"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.6.10",
            "better-auth@1.6.10",
            "auth@1.6.10",
            "@better-auth/test-utils@1.6.10",
            "@better-auth/telemetry@1.6.10",
            "@better-auth/stripe@1.6.10",
            "@better-auth/sso@1.6.10",
            "@better-auth/scim@1.6.10",
            "@better-auth/redis-storage@1.6.10",
            "@better-auth/prisma-adapter@1.6.10",
            "@better-auth/passkey@1.6.10",
            "@better-auth/oauth-provider@1.6.10",
            "@better-auth/mongo-adapter@1.6.10",
            "@better-auth/memory-adapter@1.6.10",
            "@better-auth/kysely-adapter@1.6.10",
            "@better-auth/i18n@1.6.10",
            "@better-auth/expo@1.6.10",
            "@better-auth/electron@1.6.10",
            "@better-auth/drizzle-adapter@1.6.10",
            "@better-auth/core@1.6.10",
            "@better-auth/api-key@1.6.10",
            "v1.6.9",
            "better-auth@1.6.9",
            "auth@1.6.9",
            "@better-auth/test-utils@1.6.9",
            "@better-auth/telemetry@1.6.9",
            "@better-auth/stripe@1.6.9",
            "@better-auth/sso@1.6.9",
            "@better-auth/scim@1.6.9",
            "@better-auth/redis-storage@1.6.9",
            "@better-auth/prisma-adapter@1.6.9",
            "@better-auth/passkey@1.6.9",
            "@better-auth/oauth-provider@1.6.9",
            "@better-auth/mongo-adapter@1.6.9",
            "@better-auth/memory-adapter@1.6.9",
            "@better-auth/kysely-adapter@1.6.9",
            "@better-auth/i18n@1.6.9",
            "@better-auth/expo@1.6.9",
            "@better-auth/electron@1.6.9",
            "@better-auth/drizzle-adapter@1.6.9",
            "@better-auth/core@1.6.9",
            "@better-auth/api-key@1.6.9",
            "v1.6.8",
            "better-auth@1.6.8",
            "auth@1.6.8",
            "@better-auth/test-utils@1.6.8",
            "@better-auth/telemetry@1.6.8",
            "@better-auth/stripe@1.6.8",
            "@better-auth/sso@1.6.8",
            "@better-auth/scim@1.6.8",
            "@better-auth/redis-storage@1.6.8",
            "@better-auth/prisma-adapter@1.6.8",
            "@better-auth/passkey@1.6.8",
            "@better-auth/oauth-provider@1.6.8",
            "@better-auth/mongo-adapter@1.6.8",
            "@better-auth/memory-adapter@1.6.8",
            "@better-auth/kysely-adapter@1.6.8",
            "@better-auth/i18n@1.6.8",
            "@better-auth/expo@1.6.8",
            "@better-auth/electron@1.6.8",
            "@better-auth/drizzle-adapter@1.6.8",
            "@better-auth/core@1.6.8",
            "@better-auth/api-key@1.6.8",
            "v1.6.7",
            "better-auth@1.6.7",
            "auth@1.6.7",
            "@better-auth/test-utils@1.6.7",
            "@better-auth/telemetry@1.6.7",
            "@better-auth/stripe@1.6.7",
            "@better-auth/sso@1.6.7",
            "@better-auth/scim@1.6.7",
            "@better-auth/redis-storage@1.6.7",
            "@better-auth/prisma-adapter@1.6.7",
            "@better-auth/passkey@1.6.7",
            "@better-auth/oauth-provider@1.6.7",
            "@better-auth/mongo-adapter@1.6.7",
            "@better-auth/memory-adapter@1.6.7",
            "@better-auth/kysely-adapter@1.6.7",
            "@better-auth/i18n@1.6.7",
            "@better-auth/expo@1.6.7",
            "@better-auth/electron@1.6.7",
            "@better-auth/drizzle-adapter@1.6.7",
            "@better-auth/core@1.6.7",
            "@better-auth/api-key@1.6.7",
            "v1.6.6",
            "better-auth@1.6.6",
            "auth@1.6.6",
            "@better-auth/test-utils@1.6.6",
            "@better-auth/telemetry@1.6.6",
            "@better-auth/stripe@1.6.6",
            "@better-auth/sso@1.6.6",
            "@better-auth/scim@1.6.6",
            "@better-auth/redis-storage@1.6.6",
            "@better-auth/prisma-adapter@1.6.6",
            "@better-auth/passkey@1.6.6",
            "@better-auth/oauth-provider@1.6.6",
            "@better-auth/mongo-adapter@1.6.6",
            "@better-auth/memory-adapter@1.6.6",
            "@better-auth/kysely-adapter@1.6.6",
            "@better-auth/i18n@1.6.6",
            "@better-auth/expo@1.6.6",
            "@better-auth/electron@1.6.6",
            "@better-auth/drizzle-adapter@1.6.6",
            "@better-auth/core@1.6.6",
            "@better-auth/api-key@1.6.6",
            "v1.6.5",
            "better-auth@1.6.5",
            "auth@1.6.5",
            "@better-auth/test-utils@1.6.5",
            "@better-auth/telemetry@1.6.5",
            "@better-auth/stripe@1.6.5",
            "@better-auth/sso@1.6.5",
            "@better-auth/scim@1.6.5",
            "@better-auth/redis-storage@1.6.5",
            "@better-auth/prisma-adapter@1.6.5",
            "@better-auth/passkey@1.6.5",
            "@better-auth/oauth-provider@1.6.5",
            "@better-auth/mongo-adapter@1.6.5",
            "@better-auth/memory-adapter@1.6.5",
            "@better-auth/kysely-adapter@1.6.5",
            "@better-auth/i18n@1.6.5",
            "@better-auth/expo@1.6.5",
            "@better-auth/electron@1.6.5",
            "@better-auth/drizzle-adapter@1.6.5",
            "@better-auth/core@1.6.5",
            "@better-auth/api-key@1.6.5",
            "v1.6.4",
            "better-auth@1.6.4",
            "auth@1.6.4",
            "@better-auth/test-utils@1.6.4",
            "@better-auth/telemetry@1.6.4",
            "@better-auth/stripe@1.6.4",
            "@better-auth/sso@1.6.4",
            "@better-auth/scim@1.6.4",
            "@better-auth/redis-storage@1.6.4",
            "@better-auth/prisma-adapter@1.6.4",
            "@better-auth/passkey@1.6.4",
            "@better-auth/oauth-provider@1.6.4",
            "@better-auth/mongo-adapter@1.6.4",
            "@better-auth/memory-adapter@1.6.4",
            "@better-auth/kysely-adapter@1.6.4",
            "@better-auth/i18n@1.6.4",
            "@better-auth/expo@1.6.4",
            "@better-auth/electron@1.6.4",
            "@better-auth/drizzle-adapter@1.6.4",
            "@better-auth/core@1.6.4",
            "@better-auth/api-key@1.6.4",
            "v1.6.3",
            "better-auth@1.6.3",
            "auth@1.6.3",
            "@better-auth/test-utils@1.6.3",
            "@better-auth/telemetry@1.6.3",
            "@better-auth/stripe@1.6.3",
            "@better-auth/sso@1.6.3",
            "@better-auth/scim@1.6.3",
            "@better-auth/redis-storage@1.6.3",
            "@better-auth/prisma-adapter@1.6.3",
            "@better-auth/passkey@1.6.3",
            "@better-auth/oauth-provider@1.6.3",
            "@better-auth/mongo-adapter@1.6.3",
            "@better-auth/memory-adapter@1.6.3",
            "@better-auth/kysely-adapter@1.6.3",
            "@better-auth/i18n@1.6.3",
            "@better-auth/expo@1.6.3",
            "@better-auth/electron@1.6.3",
            "@better-auth/drizzle-adapter@1.6.3",
            "@better-auth/core@1.6.3",
            "@better-auth/api-key@1.6.3",
            "v1.6.2",
            "better-auth@1.6.2",
            "auth@1.6.2",
            "@better-auth/test-utils@1.6.2",
            "@better-auth/telemetry@1.6.2",
            "@better-auth/stripe@1.6.2",
            "@better-auth/sso@1.6.2",
            "@better-auth/scim@1.6.2",
            "@better-auth/redis-storage@1.6.2",
            "@better-auth/prisma-adapter@1.6.2",
            "@better-auth/passkey@1.6.2",
            "@better-auth/oauth-provider@1.6.2",
            "@better-auth/mongo-adapter@1.6.2",
            "@better-auth/memory-adapter@1.6.2",
            "@better-auth/kysely-adapter@1.6.2",
            "@better-auth/i18n@1.6.2",
            "@better-auth/expo@1.6.2",
            "@better-auth/electron@1.6.2",
            "@better-auth/drizzle-adapter@1.6.2",
            "@better-auth/core@1.6.2",
            "@better-auth/api-key@1.6.2",
            "v1.6.1",
            "better-auth@1.6.1",
            "auth@1.6.1",
            "@better-auth/test-utils@1.6.1",
            "@better-auth/telemetry@1.6.1",
            "@better-auth/stripe@1.6.1",
            "@better-auth/sso@1.6.1",
            "@better-auth/scim@1.6.1",
            "@better-auth/redis-storage@1.6.1",
            "@better-auth/prisma-adapter@1.6.1",
            "@better-auth/passkey@1.6.1",
            "@better-auth/oauth-provider@1.6.1",
            "@better-auth/mongo-adapter@1.6.1",
            "@better-auth/memory-adapter@1.6.1",
            "@better-auth/kysely-adapter@1.6.1",
            "@better-auth/i18n@1.6.1",
            "@better-auth/expo@1.6.1",
            "@better-auth/electron@1.6.1",
            "@better-auth/drizzle-adapter@1.6.1",
            "@better-auth/core@1.6.1",
            "@better-auth/api-key@1.6.1",
            "v1.6.0",
            "better-auth@1.6.0",
            "auth@1.6.0",
            "@better-auth/test-utils@1.6.0",
            "@better-auth/telemetry@1.6.0",
            "@better-auth/stripe@1.6.0",
            "@better-auth/sso@1.6.0",
            "@better-auth/scim@1.6.0",
            "@better-auth/redis-storage@1.6.0",
            "@better-auth/prisma-adapter@1.6.0",
            "@better-auth/passkey@1.6.0",
            "@better-auth/oauth-provider@1.6.0",
            "@better-auth/mongo-adapter@1.6.0",
            "@better-auth/memory-adapter@1.6.0",
            "@better-auth/kysely-adapter@1.6.0",
            "@better-auth/i18n@1.6.0",
            "@better-auth/expo@1.6.0",
            "@better-auth/electron@1.6.0",
            "@better-auth/drizzle-adapter@1.6.0",
            "@better-auth/core@1.6.0",
            "@better-auth/api-key@1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67334.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.809743765Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67334.json",
        "https://github.com/better-auth/better-auth/security/advisories/GHSA-2vg6-77g8-24mp",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-67334",
        "https://www.vulncheck.com/advisories/better-auth-stale-sessions-persist-after-user-deletion"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-459"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67334.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-67334",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495762,
  "published_at": "2026-08-01T12:22:18.107+00:00"
}