{"id":"CVE-2026-42496","state":"PUBLISHED","title":"Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory","description":"Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.\n\n_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.\n\nA subsequent open through the extracted name reads or writes the attacker chosen path.","publishedAt":"2026-05-26T00:17:19.110Z","updatedAt":"2026-07-15T00:57:33.692Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"CPANSec","products":["BINGOS Archive::Tar"],"affected":[{"vendor":"BINGOS","product":"Archive::Tar","packageName":"Archive-Tar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.08","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","programFiles":["lib/Archive/Tar.pm"],"programRoutines":[{"name":"Archive::Tar::_make_special_file"}],"repo":"https://github.com/jib/archive-tar-new"}],"references":["https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch","https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes","https://www.cve.org/CVERecord?id=CVE-2026-42497","https://access.redhat.com/security/cve/CVE-2026-42496","https://bugzilla.redhat.com/show_bug.cgi?id=2481314","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42496.json","https://access.redhat.com/errata/RHSA-2026:30857","https://access.redhat.com/errata/RHSA-2026:30851","https://access.redhat.com/errata/RHSA-2026:30856","https://access.redhat.com/errata/RHSA-2026:30852"],"weaknesses":["CWE-59","CWE-22"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42496.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42496","state":"PUBLISHED","datePublished":"2026-05-26T00:17:19.110Z","dateUpdated":"2026-07-15T00:57:33.692Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2026-04-27T18:34:48.417Z"},"containers":{"cna":{"title":"Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory","descriptions":[{"lang":"en","value":"Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.\n\n_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.\n\nA subsequent open through the extracted name reads or writes the attacker chosen path."}],"affected":[{"vendor":"BINGOS","product":"Archive::Tar","packageName":"Archive-Tar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.08","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","programFiles":["lib/Archive/Tar.pm"],"programRoutines":[{"name":"Archive::Tar::_make_special_file"}],"repo":"https://github.com/jib/archive-tar-new"}],"references":[{"url":"https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch","tags":["patch"]},{"url":"https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes","tags":["release-notes"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42497","tags":["related"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","description":"CWE-59 Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2026-05-26T00:17:19.110Z"},"solutions":[{"lang":"en","value":"Upgrade to Archive::Tar 3.08 or later."}],"source":{"discovery":"UNKNOWN"},"timeline":[{"lang":"en","time":"2026-04-12T00:00:00.000Z","value":"Issue reported."},{"lang":"en","time":"2026-05-22T00:00:00.000Z","value":"Version 3.08 released."}],"x_generator":{"engine":"cpansec-cna-tool 0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-28T13:08:28.377579Z","id":"CVE-2026-42496","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-28T13:08:37.326Z"}},{"title":"perl-archive-tar: perl-archive-tar: Path traversal via crafted symlinks allows arbitrary file access","descriptions":[{"lang":"en","value":"A flaw was found in perl-Archive-Tar. Versions before 3.08 for Perl are vulnerable to a path traversal issue. An attacker can craft a malicious tar archive containing symlinks with targets outside the intended extraction directory. This vulnerability allows the attacker to read or write to arbitrary files on the system, leading to potential information disclosure or data corruption."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","packageName":"perl-Archive-Tar","defaultStatus":"affected","versions":[{"version":"0:3.02-512.el10_2.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","packageName":"perl:5.32","defaultStatus":"affected","versions":[{"version":"8100020260616084412.651ee29f","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","packageName":"perl-Archive-Tar","defaultStatus":"affected","versions":[{"version":"0:2.30-2.el8_10","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","packageName":"perl-Archive-Tar","defaultStatus":"affected","versions":[{"version":"0:2.38-6.el9_8.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","packageName":"perl-Archive-Tar","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-42496","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2481314","name":"RHBZ#2481314","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42496.json","tags":["x_sadp-csaf-vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:30857","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:30851","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:30856","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:30852","tags":["vendor-advisory","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","description":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat-SADP","orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","dateUpdated":"2026-07-15T00:57:33.692Z"},"datePublic":"2026-05-26T00:17:19.110Z","solutions":[{"lang":"en","value":"RHSA-2026:30857: Red Hat Enterprise Linux AppStream (v. 10)"},{"lang":"en","value":"RHSA-2026:30851: Red Hat Enterprise Linux AppStream (v. 8)"},{"lang":"en","value":"RHSA-2026:30856: Red Hat Enterprise Linux AppStream (v. 9)"},{"lang":"en","value":"RHSA-2026:30852: Red Hat Enterprise Linux BaseOS (v. 8)"}],"timeline":[{"lang":"en","time":"2026-05-26T02:00:52.414Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-05-26T00:17:19.110Z","value":"Made public."}],"workarounds":[{"lang":"en","value":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}],"x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"}}]}}}