HighFix available
pcre2 — security advisory
PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.
- Products
- pcre2
- Affected versions
- Not specified
- Fixed versions
- 10.43-r1, 10.46-r1, 10.49-r0
- CVEs
- CVE-2026-103111
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 13:39 UTC · Revision 1
Source evidence
PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.
osv:ALPINE-CVE-2026-103111
pcre2
Fixed versions: 10.43-r1
pcre2
Fixed versions: 10.46-r1
pcre2
Fixed versions: 10.49-r0
pcre2
Fixed versions: 10.49-r0
Complete source record
{
"id": "d6584e4ea32745e55df016acbfd3542af30db4eb6fc604fc161848c365968878",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-103111",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2026-103111",
"summary": "PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.",
"evidence": "osv:ALPINE-CVE-2026-103111",
"products": [
{
"name": {
"value": "pcre2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.43-r1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pcre2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.46-r1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pcre2",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.49-r0",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pcre2",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.49-r0",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "ALPINE-CVE-2026-103111",
"aliases": [
"ALPINE-CVE-2026-103111"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.43-r1"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:apk/alpine/pcre2?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-103111.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.46-r1"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:apk/alpine/pcre2?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-103111.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.49-r0"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:apk/alpine/pcre2?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-103111.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.49-r0"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:apk/alpine/pcre2?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-103111.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-21T05:30:02.525331834Z",
"provider": "osv",
"upstream": [
"CVE-2026-103111"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2026-103111"
]
},
"related_cves": [
{
"value": "CVE-2026-103111",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 391592,
"published_at": "2026-09-30T05:16:45.863+00:00"
}