node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73566
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 21:16 UTC · Revision 1
Source evidence
node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection
core-osv · Original sourcePublished 13 Aug 2026, 17:39 UTC
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21.
osv:CVE-2026-73566
Complete source record
{
"id": "48b8f14f84814e0eac3ed57d6c03aaeea2ba078f4087a0ca39657d55b91208cc",
"url": "https://osv.dev/vulnerability/CVE-2026-73566",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection",
"summary": "node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21.",
"evidence": "osv:CVE-2026-73566",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-73566",
"aliases": [
"CVE-2026-73566",
"GHSA-r292-9mhp-454m"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/isaacs/node-tar",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "0cd9cc3c5814446d3c0cbea6a31d6c00c2c8a9d9"
},
{
"fixed": "631ae59121bf8fc8a22bbae35f074cb9b789cd4a"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "7.5.21"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "631ae59121bf8fc8a22bbae35f074cb9b789cd4a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73566.json"
}
}
],
"modified": "2026-10-28T02:30:23.492265887Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73566.json",
"https://github.com/isaacs/node-tar/security/advisories/GHSA-r292-9mhp-454m",
"https://nvd.nist.gov/vuln/detail/CVE-2026-73566",
"https://github.com/isaacs/node-tar/commit/631ae59121bf8fc8a22bbae35f074cb9b789cd4a"
],
"provider_metadata": {
"cwe_ids": [
"CWE-400",
"CWE-674"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73566.json"
}
},
"related_cves": [
{
"value": "CVE-2026-73566",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 490147,
"published_at": "2026-08-13T17:39:05.796+00:00"
}