CriticalFix available
libdbi-perl — security advisory
DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.
- Products
- libdbi-perl
- Affected versions
- 1.643-4, 1.643-4+deb12u1, 1.647-1, 1.647-1+deb13u1, 1.648-1, 1.649-1, 1.650-1, 1.651-1, 1.652-1
- Fixed versions
- 1.643-4+deb12u2, 1.650-1, 1.652-2~deb13u1
- CVEs
- CVE-2026-14740
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:15 UTC · Revision 2
Source evidence
DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.
osv:DEBIAN-CVE-2026-14740
libdbi-perl
Fixed versions: 1.643-4+deb12u2
libdbi-perl
Fixed versions: 1.652-2~deb13u1
libdbi-perl
Fixed versions: 1.650-1
Complete source record
{
"id": "20399e1925faca4ef2b0d0cdd306bcf0e041b850b55cd374c51ec0fda434b8a7",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-14740",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-14740",
"summary": "DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.",
"evidence": "osv:DEBIAN-CVE-2026-14740",
"products": [
{
"name": {
"value": "libdbi-perl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.643-4+deb12u2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1.643-4",
"evidence": "/affected/0/versions"
},
{
"value": "1.643-4+deb12u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libdbi-perl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.652-2~deb13u1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "1.647-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.647-1+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "1.648-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.649-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.650-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.651-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.652-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libdbi-perl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.650-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "1.647-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.648-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.649-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2026-14740",
"aliases": [
"DEBIAN-CVE-2026-14740"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.643-4+deb12u2"
}
]
}
],
"package": {
"name": "libdbi-perl",
"purl": "pkg:deb/debian/libdbi-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.643-4",
"1.643-4+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14740.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.652-2~deb13u1"
}
]
}
],
"package": {
"name": "libdbi-perl",
"purl": "pkg:deb/debian/libdbi-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.647-1",
"1.647-1+deb13u1",
"1.648-1",
"1.649-1",
"1.650-1",
"1.651-1",
"1.652-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14740.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.650-1"
}
]
}
],
"package": {
"name": "libdbi-perl",
"purl": "pkg:deb/debian/libdbi-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.647-1",
"1.648-1",
"1.649-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14740.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T11:47:25.615311317Z",
"provider": "osv",
"upstream": [
"CVE-2026-14740"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-14740"
]
},
"related_cves": [
{
"value": "CVE-2026-14740",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 450738,
"published_at": "2026-07-07T23:16:54.193+00:00"
}