{"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": "2026-05-26T03:06:03.290Z"}, "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"}}]}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-9538", "lastModified": "2026-05-26T04:16:27.987", "metrics": {}, "published": "2026-05-26T02:16:41.150", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/jib/archive-tar-new/commit/f9af01426038e29d9578825a0cd3626946ab08c7.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.10/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/05/26/4"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}