Medium
Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess
Type: advisorySources: OSV
Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normalization in jsonTransport. Attackers can read local files or fetch URLs by supplying path or href values in message content fields, bypassing intended access controls.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-82660
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 20:31 UTC · Revision 1
Source evidence
Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess
core-osv · Original sourcePublished 31 Aug 2026, 08:46 UTC
Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normalization in jsonTransport. Attackers can read local files or fetch URLs by supplying path or href values in message content fields, bypassing intended access controls.
osv:CVE-2026-82660
Complete source record
{
"id": "59a9b14b5c73aa7798e5ff143039f838a690e72853933cd55a2cfd5ff14ebf8c",
"url": "https://osv.dev/vulnerability/CVE-2026-82660",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess",
"summary": "Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normalization in jsonTransport. Attackers can read local files or fetch URLs by supplying path or href values in message content fields, bypassing intended access controls.",
"evidence": "osv:CVE-2026-82660",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-82660",
"aliases": [
"CVE-2026-82660",
"GHSA-wqvq-jvpq-h66f"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nodemailer/nodemailer",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "07303cb0cb34b97b44856f5de3eff212b63e4567"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "8.0.9"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "8.0.9"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
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"v8.0.7",
"v8.0.6",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82660.json"
}
}
],
"modified": "2026-10-28T02:30:39.082085860Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82660.json",
"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-wqvq-jvpq-h66f",
"https://nvd.nist.gov/vuln/detail/CVE-2026-82660",
"https://www.vulncheck.com/advisories/nodemailer-jsontransport-bypasses-disablefileaccess-and-disableurlaccess"
],
"provider_metadata": {
"cwe_ids": [
"CWE-862"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82660.json"
}
},
"related_cves": [
{
"value": "CVE-2026-82660",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 506704,
"published_at": "2026-08-31T08:46:25.605+00:00"
}