{"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"}}]}}