High
better-auth passkey before 1.4.0 IDOR via delete-passkey
Type: advisorySources: OSV
better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests to the delete-passkey endpoint with enumerated passkey IDs to remove other users' passkeys.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-71400
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 19:22 UTC · Revision 1
Source evidence
better-auth passkey before 1.4.0 IDOR via delete-passkey
core-osv · Original sourcePublished 2 Aug 2026, 12:15 UTC
better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests to the delete-passkey endpoint with enumerated passkey IDs to remove other users' passkeys.
osv:CVE-2025-71400
Complete source record
{
"id": "55253901293441c9027c379ed01ff98145c643d546d412c7ac253a5b7866cf08",
"url": "https://osv.dev/vulnerability/CVE-2025-71400",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "better-auth passkey before 1.4.0 IDOR via delete-passkey",
"summary": "better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests to the delete-passkey endpoint with enumerated passkey IDs to remove other users' passkeys.",
"evidence": "osv:CVE-2025-71400",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-71400",
"aliases": [
"CVE-2025-71400",
"GHSA-4vcf-q4xf-f48m"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/better-auth/better-auth",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "bff00f6b7fb3d95363888186cd610ea3e4e0f174"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.4.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.4.0"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71400.json"
}
}
],
"modified": "2026-10-28T02:30:22.825780404Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71400.json",
"https://github.com/better-auth/better-auth/security/advisories/GHSA-4vcf-q4xf-f48m",
"https://nvd.nist.gov/vuln/detail/CVE-2025-71400",
"https://www.vulncheck.com/advisories/better-auth-passkey-before-idor-via-delete-passkey"
],
"provider_metadata": {
"cwe_ids": [
"CWE-639"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71400.json"
}
},
"related_cves": [
{
"value": "CVE-2025-71400",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 489091,
"published_at": "2026-08-02T12:15:22.83+00:00"
}