MediumFix available
perl — security advisory
Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.
- Products
- perl
- Affected versions
- 5.14.2-21build1, 5.18.1-4, 5.18.1-4build1, 5.18.1-5, 5.18.2-2, 5.18.2-2ubuntu1, 5.18.2-2ubuntu1.1, 5.18.2-2ubuntu1.3, 5.18.2-2ubuntu1.4, 5.18.2-2ubuntu1.6, 5.18.2-2ubuntu1.7, 5.18.2-2ubuntu1.7+esm3, 5.18.2-2ubuntu1.7+esm4, 5.18.2-2ubuntu1.7+esm5, 5.18.2-2ubuntu1.7+esm7, 5.18.2-2ubuntu1.7+esm8, 5.20.2-6, 5.22.1-3, 5.22.1-4, 5.22.1-5, 5.22.1-7, 5.22.1-8, 5.22.1-9, 5.22.1-9ubuntu0.2, 5.22.1-9ubuntu0.3, 5.22.1-9ubuntu0.5, 5.22.1-9ubuntu0.6, 5.22.1-9ubuntu0.9, 5.22.1-9ubuntu0.9+esm1, 5.22.1-9ubuntu0.9+esm2, 5.22.1-9ubuntu0.9+esm3, 5.26.0-8ubuntu1, 5.26.1-2ubuntu1, 5.26.1-3, 5.26.1-4, 5.26.1-4build1, 5.26.1-5, 5.26.1-6, 5.26.1-6ubuntu0.1, 5.26.1-6ubuntu0.2, 5.26.1-6ubuntu0.3, 5.26.1-6ubuntu0.5, 5.26.1-6ubuntu0.6, 5.26.1-6ubuntu0.7, 5.26.1-6ubuntu0.7+esm2, 5.26.1-6ubuntu0.7+esm3, 5.28.1-6build1, 5.30.0-7, 5.30.0-9, 5.30.0-9build1, 5.30.0-9ubuntu0.2, 5.30.0-9ubuntu0.3, 5.30.0-9ubuntu0.4, 5.30.0-9ubuntu0.5, 5.30.0-9ubuntu0.5+esm2, 5.30.0-9ubuntu0.5+esm3, 5.32.1-3ubuntu3, 5.34.0-3ubuntu1, 5.34.0-3ubuntu1.1, 5.34.0-3ubuntu1.2, 5.34.0-3ubuntu1.3, 5.34.0-3ubuntu1.4, 5.34.0-3ubuntu1.5, 5.34.0-3ubuntu1.7, 5.34.0-3ubuntu1.8, 5.36.0-10ubuntu1, 5.36.0-9ubuntu1, 5.38.2-3, 5.38.2-3.2, 5.38.2-3.2build1, 5.38.2-3.2build2, 5.38.2-3.2build2.1, 5.38.2-3.2ubuntu0.1, 5.38.2-3.2ubuntu0.2, 5.38.2-3.2ubuntu0.3, 5.38.2-3.2ubuntu0.4, 5.40.1-6build1, 5.40.1-7build1, 5.40.1-7ubuntu0.1, 5.40.1-8, 5.40.1-8ubuntu1, 5.42.3-1
- Fixed versions
- 5.18.2-2ubuntu1.7+esm9, 5.22.1-9ubuntu0.9+esm4, 5.26.1-6ubuntu0.7+esm4, 5.30.0-9ubuntu0.5+esm4, 5.34.0-3ubuntu1.9, 5.38.2-3.2ubuntu0.6, 5.40.1-7ubuntu0.2
- CVEs
- CVE-2026-15534
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:03 UTC · Revision 1
Source evidence
Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.
osv:UBUNTU-CVE-2026-15534
perl
Fixed versions: 5.18.2-2ubuntu1.7+esm9
perl
Fixed versions: 5.22.1-9ubuntu0.9+esm4
perl
Fixed versions: 5.26.1-6ubuntu0.7+esm4
perl
Fixed versions: 5.30.0-9ubuntu0.5+esm4
perl
Fixed versions: 5.34.0-3ubuntu1.9
perl
Fixed versions: 5.38.2-3.2ubuntu0.6
perl
Fixed versions: Not specified
perl
Fixed versions: 5.40.1-7ubuntu0.2
Complete source record
{
"id": "4c8834d7dc4591f6307f3a8cc761bef614f6f0629b08d18ead95a90db4ebbb4a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-15534",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-15534",
"summary": "Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.",
"evidence": "osv:UBUNTU-CVE-2026-15534",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
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{
"value": "5.18.2-2ubuntu1.7+esm9",
"evidence": "/affected/0/ranges"
}
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{
"value": "5.14.2-21build1",
"evidence": "/affected/0/versions"
},
{
"value": "5.18.1-4",
"evidence": "/affected/0/versions"
},
{
"value": "5.18.1-4build1",
"evidence": "/affected/0/versions"
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{
"value": "5.18.1-5",
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{
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{
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{
"value": "5.18.2-2ubuntu1.1",
"evidence": "/affected/0/versions"
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{
"value": "5.18.2-2ubuntu1.3",
"evidence": "/affected/0/versions"
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{
"value": "5.18.2-2ubuntu1.4",
"evidence": "/affected/0/versions"
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{
"value": "5.18.2-2ubuntu1.6",
"evidence": "/affected/0/versions"
},
{
"value": "5.18.2-2ubuntu1.7",
"evidence": "/affected/0/versions"
},
{
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{
"value": "5.18.2-2ubuntu1.7+esm4",
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{
"value": "5.18.2-2ubuntu1.7+esm5",
"evidence": "/affected/0/versions"
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{
"value": "5.18.2-2ubuntu1.7+esm7",
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{
"value": "5.18.2-2ubuntu1.7+esm8",
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{
"name": {
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{
"value": "5.22.1-9ubuntu0.9+esm4",
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],
"affected_versions": [
{
"value": "5.20.2-6",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-3",
"evidence": "/affected/1/versions"
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{
"value": "5.22.1-4",
"evidence": "/affected/1/versions"
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{
"value": "5.22.1-5",
"evidence": "/affected/1/versions"
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{
"value": "5.22.1-7",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-8",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.2",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.3",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.5",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.6",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.9",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.9+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.9+esm2",
"evidence": "/affected/1/versions"
},
{
"value": "5.22.1-9ubuntu0.9+esm3",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "perl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.26.1-6ubuntu0.7+esm4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "5.26.0-8ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-2ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-3",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-4",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-4build1",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-5",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.1",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.2",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.3",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.5",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.6",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.7",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.7+esm2",
"evidence": "/affected/2/versions"
},
{
"value": "5.26.1-6ubuntu0.7+esm3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "perl",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.30.0-9ubuntu0.5+esm4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "5.28.1-6build1",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-7",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9build1",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.2",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.3",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.4",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.5",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.5+esm2",
"evidence": "/affected/3/versions"
},
{
"value": "5.30.0-9ubuntu0.5+esm3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
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"fixed_versions": [
{
"value": "5.34.0-3ubuntu1.9",
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],
"affected_versions": [
{
"value": "5.32.1-3ubuntu3",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1.1",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1.2",
"evidence": "/affected/4/versions"
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{
"value": "5.34.0-3ubuntu1.3",
"evidence": "/affected/4/versions"
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{
"value": "5.34.0-3ubuntu1.4",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1.5",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1.7",
"evidence": "/affected/4/versions"
},
{
"value": "5.34.0-3ubuntu1.8",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "perl",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.38.2-3.2ubuntu0.6",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": [
{
"value": "5.36.0-9ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "5.36.0-10ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "5.38.2-3",
"evidence": "/affected/5/versions"
},
{
"value": "5.38.2-3.2",
"evidence": "/affected/5/versions"
},
{
"value": "5.38.2-3.2build1",
"evidence": "/affected/5/versions"
},
{
"value": "5.38.2-3.2build2",
"evidence": "/affected/5/versions"
},
{
"value": "5.38.2-3.2build2.1",
"evidence": "/affected/5/versions"
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{
"value": "5.38.2-3.2ubuntu0.1",
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{
"value": "5.38.2-3.2ubuntu0.2",
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{
"value": "5.38.2-3.2ubuntu0.3",
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{
"value": "5.38.2-3.2ubuntu0.4",
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}
]
},
{
"name": {
"value": "perl",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.40.1-7build1",
"evidence": "/affected/6/versions"
},
{
"value": "5.40.1-8",
"evidence": "/affected/6/versions"
},
{
"value": "5.40.1-8ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "5.42.3-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "perl",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
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{
"value": "5.40.1-7ubuntu0.2",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": [
{
"value": "5.40.1-6build1",
"evidence": "/affected/7/versions"
},
{
"value": "5.40.1-7build1",
"evidence": "/affected/7/versions"
},
{
"value": "5.40.1-7ubuntu0.1",
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}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-15534",
"aliases": [
"UBUNTU-CVE-2026-15534"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.18.2-2ubuntu1.7+esm9"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"versions": [
"5.14.2-21build1",
"5.18.1-4",
"5.18.1-4build1",
"5.18.1-5",
"5.18.2-2",
"5.18.2-2ubuntu1",
"5.18.2-2ubuntu1.1",
"5.18.2-2ubuntu1.3",
"5.18.2-2ubuntu1.4",
"5.18.2-2ubuntu1.6",
"5.18.2-2ubuntu1.7",
"5.18.2-2ubuntu1.7+esm3",
"5.18.2-2ubuntu1.7+esm4",
"5.18.2-2ubuntu1.7+esm5",
"5.18.2-2ubuntu1.7+esm7",
"5.18.2-2ubuntu1.7+esm8"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libcgi-fast-perl",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
},
{
"binary_name": "libperl5.18",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
},
{
"binary_name": "perl",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
},
{
"binary_name": "perl-base",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
},
{
"binary_name": "perl-debug",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
},
{
"binary_name": "perl-modules",
"binary_version": "5.18.2-2ubuntu1.7+esm9"
}
],
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.22.1-9ubuntu0.9+esm4"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=esm-infra-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"5.20.2-6",
"5.22.1-3",
"5.22.1-4",
"5.22.1-5",
"5.22.1-7",
"5.22.1-8",
"5.22.1-9",
"5.22.1-9ubuntu0.2",
"5.22.1-9ubuntu0.3",
"5.22.1-9ubuntu0.5",
"5.22.1-9ubuntu0.6",
"5.22.1-9ubuntu0.9",
"5.22.1-9ubuntu0.9+esm1",
"5.22.1-9ubuntu0.9+esm2",
"5.22.1-9ubuntu0.9+esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libperl5.22",
"binary_version": "5.22.1-9ubuntu0.9+esm4"
},
{
"binary_name": "perl",
"binary_version": "5.22.1-9ubuntu0.9+esm4"
},
{
"binary_name": "perl-base",
"binary_version": "5.22.1-9ubuntu0.9+esm4"
},
{
"binary_name": "perl-debug",
"binary_version": "5.22.1-9ubuntu0.9+esm4"
},
{
"binary_name": "perl-modules-5.22",
"binary_version": "5.22.1-9ubuntu0.9+esm4"
}
],
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.26.1-6ubuntu0.7+esm4"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"5.26.0-8ubuntu1",
"5.26.1-2ubuntu1",
"5.26.1-3",
"5.26.1-4",
"5.26.1-4build1",
"5.26.1-5",
"5.26.1-6",
"5.26.1-6ubuntu0.1",
"5.26.1-6ubuntu0.2",
"5.26.1-6ubuntu0.3",
"5.26.1-6ubuntu0.5",
"5.26.1-6ubuntu0.6",
"5.26.1-6ubuntu0.7",
"5.26.1-6ubuntu0.7+esm2",
"5.26.1-6ubuntu0.7+esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libperl5.26",
"binary_version": "5.26.1-6ubuntu0.7+esm4"
},
{
"binary_name": "perl",
"binary_version": "5.26.1-6ubuntu0.7+esm4"
},
{
"binary_name": "perl-base",
"binary_version": "5.26.1-6ubuntu0.7+esm4"
},
{
"binary_name": "perl-debug",
"binary_version": "5.26.1-6ubuntu0.7+esm4"
},
{
"binary_name": "perl-modules-5.26",
"binary_version": "5.26.1-6ubuntu0.7+esm4"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.30.0-9ubuntu0.5+esm4"
}
]
}
],
"package": {
"name": "perl",
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"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
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"5.30.0-7",
"5.30.0-9",
"5.30.0-9build1",
"5.30.0-9ubuntu0.2",
"5.30.0-9ubuntu0.3",
"5.30.0-9ubuntu0.4",
"5.30.0-9ubuntu0.5",
"5.30.0-9ubuntu0.5+esm2",
"5.30.0-9ubuntu0.5+esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
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},
{
"binary_name": "perl",
"binary_version": "5.30.0-9ubuntu0.5+esm4"
},
{
"binary_name": "perl-base",
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{
"binary_name": "perl-debug",
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},
{
"binary_name": "perl-modules-5.30",
"binary_version": "5.30.0-9ubuntu0.5+esm4"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.34.0-3ubuntu1.9"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"5.34.0-3ubuntu1",
"5.34.0-3ubuntu1.1",
"5.34.0-3ubuntu1.2",
"5.34.0-3ubuntu1.3",
"5.34.0-3ubuntu1.4",
"5.34.0-3ubuntu1.5",
"5.34.0-3ubuntu1.7",
"5.34.0-3ubuntu1.8"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libperl5.34",
"binary_version": "5.34.0-3ubuntu1.9"
},
{
"binary_name": "perl",
"binary_version": "5.34.0-3ubuntu1.9"
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{
"binary_name": "perl-base",
"binary_version": "5.34.0-3ubuntu1.9"
},
{
"binary_name": "perl-debug",
"binary_version": "5.34.0-3ubuntu1.9"
},
{
"binary_name": "perl-modules-5.34",
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}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.38.2-3.2ubuntu0.6"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"5.36.0-9ubuntu1",
"5.36.0-10ubuntu1",
"5.38.2-3",
"5.38.2-3.2",
"5.38.2-3.2build1",
"5.38.2-3.2build2",
"5.38.2-3.2build2.1",
"5.38.2-3.2ubuntu0.1",
"5.38.2-3.2ubuntu0.2",
"5.38.2-3.2ubuntu0.3",
"5.38.2-3.2ubuntu0.4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
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"ecosystem_specific": {
"binaries": [
{
"binary_name": "libperl5.38t64",
"binary_version": "5.38.2-3.2ubuntu0.6"
},
{
"binary_name": "perl",
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{
"binary_name": "perl-base",
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{
"binary_name": "perl-debug",
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},
{
"binary_name": "perl-modules-5.38",
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],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"5.40.1-7build1",
"5.40.1-8",
"5.40.1-8ubuntu1",
"5.42.3-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
"ecosystem_specific": {
"binaries": [
{
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{
"binary_name": "perl",
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{
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{
"binary_name": "perl-debug",
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{
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}
},
{
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{
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{
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}
],
"package": {
"name": "perl",
"purl": "pkg:deb/ubuntu/perl?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"5.40.1-7build1",
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15534.json"
},
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"binaries": [
{
"binary_name": "libperl5.40",
"binary_version": "5.40.1-7ubuntu0.2"
},
{
"binary_name": "perl",
"binary_version": "5.40.1-7ubuntu0.2"
},
{
"binary_name": "perl-base",
"binary_version": "5.40.1-7ubuntu0.2"
},
{
"binary_name": "perl-debug",
"binary_version": "5.40.1-7ubuntu0.2"
},
{
"binary_name": "perl-modules-5.40",
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],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-17T12:58:05.975521223Z",
"provider": "osv",
"upstream": [
"CVE-2026-15534"
],
"references": [
"https://ubuntu.com/security/CVE-2026-15534",
"https://www.cve.org/CVERecord?id=CVE-2026-15534",
"https://github.com/Perl/perl5/commit/54cf3d44cbbedd17d774e9a37921963e8fd5d0cb.patch",
"https://github.com/Perl/perl5/commit/568e6fd238867bb9e99fa3f47cba3169009239e0.patch",
"https://ubuntu.com/security/notices/USN-8736-1",
"https://ubuntu.com/security/notices/USN-8736-2"
]
},
"related_cves": [
{
"value": "CVE-2026-15534",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 358066,
"published_at": "2026-08-09T18:16:00+00:00"
}