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vuln-cve/data/2026/9xxx/CVE-2026-9538.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-9538",
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"state": "PUBLISHED",
"assignerShortName": "CPANSec",
"dateReserved": "2026-05-25T23:04:04.116Z",
"datePublished": "2026-05-26T00:18:43.704Z",
"dateUpdated": "2026-05-28T13:16:08.447Z"
},
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Archive-Tar",
"product": "Archive::Tar",
"programFiles": [
"lib/Archive/Tar.pm"
],
"programRoutines": [
{
"name": "Archive::Tar::_read_tar"
}
],
"repo": "https://github.com/jib/archive-tar-new",
"vendor": "BINGOS",
"versions": [
{
"lessThan": "3.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header.\n\n_read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value.\n\nA crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-789",
"description": "CWE-789 Memory Allocation with Excessive Size Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec",
"dateUpdated": "2026-05-26T00:18:43.704Z"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/jib/archive-tar-new/commit/f9af01426038e29d9578825a0cd3626946ab08c7.patch"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.10/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to Archive::Tar 3.10 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2026-05-25T00:00:00.000Z",
"value": "Issue reported."
},
{
"lang": "en",
"time": "2026-05-25T00:00:00.000Z",
"value": "Version 3.10 released."
}
],
"title": "Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/26/4"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2026-05-26T03:06:03.290Z"
}
},
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-28T13:16:04.042321Z",
"id": "CVE-2026-9538",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-28T13:16:08.447Z"
}
}
]
}
}