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
- 10.42-1, 10.42-1+deb12u1, 10.45-1, 10.46-1, 10.46-1~deb13u1, 10.46-1~deb13u2, 10.46-1~deb13u3, 10.47-1, 10.47-2, 10.48-1, 10.48-2, 10.48-3
- Fixed versions
- 10.42-1+deb12u2, 10.46-1~deb13u3, 10.48-3.1
- CVEs
- CVE-2026-103111
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:57 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:DEBIAN-CVE-2026-103111
pcre2
Fixed versions: 10.42-1+deb12u2
pcre2
Fixed versions: 10.46-1~deb13u3
pcre2
Fixed versions: 10.48-3.1
Complete source record
{
"id": "c1b1499f6ab986068be8c937f931499c637378c5ab65837c1b1104c1a8e79413",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-103111",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-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:DEBIAN-CVE-2026-103111",
"products": [
{
"name": {
"value": "pcre2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.42-1+deb12u2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "10.42-1",
"evidence": "/affected/0/versions"
},
{
"value": "10.42-1+deb12u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "pcre2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.46-1~deb13u3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "10.45-1",
"evidence": "/affected/1/versions"
},
{
"value": "10.46-1~deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "10.46-1~deb13u2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "pcre2",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.48-3.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "10.45-1",
"evidence": "/affected/2/versions"
},
{
"value": "10.46-1",
"evidence": "/affected/2/versions"
},
{
"value": "10.46-1~deb13u1",
"evidence": "/affected/2/versions"
},
{
"value": "10.46-1~deb13u2",
"evidence": "/affected/2/versions"
},
{
"value": "10.46-1~deb13u3",
"evidence": "/affected/2/versions"
},
{
"value": "10.47-1",
"evidence": "/affected/2/versions"
},
{
"value": "10.47-2",
"evidence": "/affected/2/versions"
},
{
"value": "10.48-1",
"evidence": "/affected/2/versions"
},
{
"value": "10.48-2",
"evidence": "/affected/2/versions"
},
{
"value": "10.48-3",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-103111",
"aliases": [
"DEBIAN-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": "10.42-1+deb12u2"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:deb/debian/pcre2?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"10.42-1",
"10.42-1+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103111.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.46-1~deb13u3"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:deb/debian/pcre2?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"10.45-1",
"10.46-1~deb13u1",
"10.46-1~deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103111.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.48-3.1"
}
]
}
],
"package": {
"name": "pcre2",
"purl": "pkg:deb/debian/pcre2?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"10.45-1",
"10.46-1",
"10.46-1~deb13u1",
"10.46-1~deb13u2",
"10.46-1~deb13u3",
"10.47-1",
"10.47-2",
"10.48-1",
"10.48-2",
"10.48-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103111.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-08T17:00:12.500523570Z",
"provider": "osv",
"upstream": [
"CVE-2026-103111"
],
"references": [
"https://security-tracker.debian.org/tracker/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": 103793,
"published_at": "2026-09-30T05:16:45.863+00:00"
}