Critical
Security advisory
An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function via a RegExp("[\\u0") payload, related to re_parse_char_class in parser/regexp/re-parser.c.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-11419
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:25 UTC · Revision 1
Source evidence
An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function via a RegExp("[\\u0") payload, related to re_parse_char_class in parser/regexp/re-parser.c.
osv:CVE-2018-11419
Complete source record
{
"id": "0a1d324f949d68a4dfcb06724a632d532e2526b3a2460a5038b9089ca6e00a35",
"url": "https://osv.dev/vulnerability/CVE-2018-11419",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-11419",
"summary": "An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function via a RegExp(\"[\\\\u0\") payload, related to re_parse_char_class in parser/regexp/re-parser.c.",
"evidence": "osv:CVE-2018-11419",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-11419",
"aliases": [
"CVE-2018-11419"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/jerryscript-project/jerryscript",
"type": "GIT",
"events": [
{
"introduced": "63f739e5a0f64abb4e3d2ed103a2f2813c1f2257"
},
{
"last_affected": "63f739e5a0f64abb4e3d2ed103a2f2813c1f2257"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:jerryscript:jerryscript:1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.0"
},
{
"last_affected": "1.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.0",
"v1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11419.json"
}
}
],
"modified": "2026-10-20T10:50:17.280990379Z",
"provider": "osv",
"references": [
"https://github.com/jerryscript-project/jerryscript/issues/2230"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-11419",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381484,
"published_at": "2018-05-24T20:29:00.4+00:00"
}