{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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": {"id": "CVE-2026-9538", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-28T13:16:04.042321Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-05-28T13:15:58.771Z"}}], "cna": {"title": "Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/jib/archive-tar-new", "vendor": "BINGOS", "product": "Archive::Tar", "versions": [{"status": "affected", "version": "0", "lessThan": "3.10", "versionType": "custom"}], "packageName": "Archive-Tar", "programFiles": ["lib/Archive/Tar.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "Archive::Tar::_read_tar"}]}], "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."}], "solutions": [{"lang": "en", "value": "Upgrade to Archive::Tar 3.10 or later."}], "references": [{"url": "https://github.com/jib/archive-tar-new/commit/f9af01426038e29d9578825a0cd3626946ab08c7.patch", "tags": ["patch"]}, {"url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.10/changes", "tags": ["release-notes"]}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "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": [{"lang": "en", "type": "CWE", "cweId": "CWE-789", "description": "CWE-789 Memory Allocation with Excessive Size Value"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-26T00:18:43.704Z"}}}, "cveMetadata": {"cveId": "CVE-2026-9538", "state": "PUBLISHED", "dateUpdated": "2026-05-26T03:06:03.290Z", "dateReserved": "2026-05-25T23:04:04.116Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-05-26T00:18:43.704Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:archive\\:\\:tar_project:archive\\:\\:tar:*:*:*:*:*:perl:*:*", "matchCriteriaId": "0D0D2922-4664-4650-8D9E-C8D5641A7106", "versionEndExcluding": "3.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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": "2026-05-28T14:16:26.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-05-26T02:16:41.150", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Patch"], "url": "https://github.com/jib/archive-tar-new/commit/f9af01426038e29d9578825a0cd3626946ab08c7.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Release Notes"], "url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.10/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/05/26/4"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.10)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Archive::Tar", "source": "cna", "vendor": "BINGOS"}, "product": "archive::tar", "vendor": "bingos"}], "created": "2026-05-26T02:30:26.399722+00:00", "updated": "2026-05-27T21:00:14.913764+00:00", "vendors": ["bingos", "bingos$PRODUCT$archive::tar"]}