MediumFix available
node-re2 — security advisory
re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.
- Products
- node-re2
- Affected versions
- 1.18.0+~cs2.13.8-1, 1.19.2+~cs2.13.13-1, 1.20.10+~cs2.13.13-1, 1.20.12+~cs2.13.13-1, 1.21.4+~cs2.13.13-1, 1.21.4+~cs2.13.13-2, 1.22.1+~cs1.3.5-1, 1.23.3+~cs1.3.5-1, 1.25.0+~cs1.6.0-1, 1.25.0+~cs1.6.0-2, 1.26.1+~cs1.7.0-1, 1.26.1+~cs1.8.0-1, 1.27.0+~cs1.8.1-1
- Fixed versions
- 1.26.1+~cs1.7.0-1
- CVEs
- CVE-2026-67550
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:11 UTC · Revision 1
Source evidence
re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.
osv:DEBIAN-CVE-2026-67550
node-re2
Fixed versions: Not specified
node-re2
Fixed versions: Not specified
node-re2
Fixed versions: 1.26.1+~cs1.7.0-1
Complete source record
{
"id": "c34194631201e7309f0a320bb091bf01b3dffe7d4461f3b4c0d6b06f54751fe4",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-67550",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-67550",
"summary": "re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.",
"evidence": "osv:DEBIAN-CVE-2026-67550",
"products": [
{
"name": {
"value": "node-re2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.18.0+~cs2.13.8-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.19.2+~cs2.13.13-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.20.10+~cs2.13.13-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.20.12+~cs2.13.13-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.21.4+~cs2.13.13-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.21.4+~cs2.13.13-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.22.1+~cs1.3.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.23.3+~cs1.3.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.25.0+~cs1.6.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.25.0+~cs1.6.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.26.1+~cs1.7.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.26.1+~cs1.8.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.27.0+~cs1.8.1-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "node-re2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.21.4+~cs2.13.13-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.22.1+~cs1.3.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.23.3+~cs1.3.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.25.0+~cs1.6.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.25.0+~cs1.6.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.1+~cs1.7.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.1+~cs1.8.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.0+~cs1.8.1-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "node-re2",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.26.1+~cs1.7.0-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "1.21.4+~cs2.13.13-2",
"evidence": "/affected/2/versions"
},
{
"value": "1.22.1+~cs1.3.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.23.3+~cs1.3.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.25.0+~cs1.6.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.25.0+~cs1.6.0-2",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-67550",
"aliases": [
"DEBIAN-CVE-2026-67550"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-re2",
"purl": "pkg:deb/debian/node-re2?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.18.0+~cs2.13.8-1",
"1.19.2+~cs2.13.13-1",
"1.20.10+~cs2.13.13-1",
"1.20.12+~cs2.13.13-1",
"1.21.4+~cs2.13.13-1",
"1.21.4+~cs2.13.13-2",
"1.22.1+~cs1.3.5-1",
"1.23.3+~cs1.3.5-1",
"1.25.0+~cs1.6.0-1",
"1.25.0+~cs1.6.0-2",
"1.26.1+~cs1.7.0-1",
"1.26.1+~cs1.8.0-1",
"1.27.0+~cs1.8.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67550.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-re2",
"purl": "pkg:deb/debian/node-re2?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.21.4+~cs2.13.13-2",
"1.22.1+~cs1.3.5-1",
"1.23.3+~cs1.3.5-1",
"1.25.0+~cs1.6.0-1",
"1.25.0+~cs1.6.0-2",
"1.26.1+~cs1.7.0-1",
"1.26.1+~cs1.8.0-1",
"1.27.0+~cs1.8.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67550.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.26.1+~cs1.7.0-1"
}
]
}
],
"package": {
"name": "node-re2",
"purl": "pkg:deb/debian/node-re2?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.21.4+~cs2.13.13-2",
"1.22.1+~cs1.3.5-1",
"1.23.3+~cs1.3.5-1",
"1.25.0+~cs1.6.0-1",
"1.25.0+~cs1.6.0-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67550.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-24T10:01:16.979733293Z",
"provider": "osv",
"upstream": [
"CVE-2026-67550"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-67550"
]
},
"related_cves": [
{
"value": "CVE-2026-67550",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429074,
"published_at": "2026-07-30T20:18:15.03+00:00"
}