{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-57079", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-06-23T18:20:33.513Z", "datePublished": "2026-06-30T11:04:32.211Z", "dateUpdated": "2026-06-30T13:52:04.135Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Net-BitTorrent", "product": "Net::BitTorrent", "programFiles": ["lib/Net/BitTorrent/Torrent.pm", "lib/Net/BitTorrent/Storage.pm", "lib/Net/BitTorrent/Storage/File.pm"], "programRoutines": [{"name": "Net::BitTorrent::Torrent::_on_metadata_received"}, {"name": "Net::BitTorrent::Storage::add_file"}, {"name": "Net::BitTorrent::Storage::_parse_file_tree"}], "repo": "https://github.com/sanko/Net-BitTorrent.pm", "vendor": "SANKO", "versions": [{"lessThanOrEqual": "2.0.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata.\n\nNet::BitTorrent validates file path components only on the .torrent-file ingest path. The peer and magnet metadata path (_on_metadata_received, reached from the BEP09 ut_metadata extension) passes attacker-supplied file names straight to Storage::add_file and Storage::_parse_file_tree, where Path::Tiny's child() does not collapse \"..\". A v2 file tree key, a v1 files[].path element, or a single-file name containing \"..\" segments therefore resolves outside the download directory.\n\nBecause the peer also controls the piece hashes and the served bytes, content verification passes, so a malicious magnet or peer writes attacker-chosen content to an attacker-chosen path on the downloading host."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-06-30T11:04:32.211Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://github.com/sanko/Net-BitTorrent.pm/security/advisories/GHSA-5wc6-r65f-62rr"}], "source": {"discovery": "UNKNOWN"}, "title": "Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata", "workarounds": [{"lang": "en", "value": "There is no fixed release. Validate metadata file path components on the peer and magnet ingest path as the .torrent-file path already does (reject components equal to '', '.', or '..' or containing '/' or '\\'), and confirm each resolved path stays within the download directory before writing."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-30T13:52:00.535187Z", "id": "CVE-2026-57079", "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": "2026-06-30T13:52:04.135Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-57079", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-30T13:52:00.535187Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-30T13:51:56.088Z"}}], "cna": {"title": "Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/sanko/Net-BitTorrent.pm", "vendor": "SANKO", "product": "Net::BitTorrent", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2.0.1"}], "packageName": "Net-BitTorrent", "programFiles": ["lib/Net/BitTorrent/Torrent.pm", "lib/Net/BitTorrent/Storage.pm", "lib/Net/BitTorrent/Storage/File.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "Net::BitTorrent::Torrent::_on_metadata_received"}, {"name": "Net::BitTorrent::Storage::add_file"}, {"name": "Net::BitTorrent::Storage::_parse_file_tree"}]}], "references": [{"url": "https://github.com/sanko/Net-BitTorrent.pm/security/advisories/GHSA-5wc6-r65f-62rr", "tags": ["vendor-advisory"]}], "workarounds": [{"lang": "en", "value": "There is no fixed release. Validate metadata file path components on the peer and magnet ingest path as the .torrent-file path already does (reject components equal to '', '.', or '..' or containing '/' or '\\'), and confirm each resolved path stays within the download directory before writing."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata.\n\nNet::BitTorrent validates file path components only on the .torrent-file ingest path. The peer and magnet metadata path (_on_metadata_received, reached from the BEP09 ut_metadata extension) passes attacker-supplied file names straight to Storage::add_file and Storage::_parse_file_tree, where Path::Tiny's child() does not collapse \"..\". A v2 file tree key, a v1 files[].path element, or a single-file name containing \"..\" segments therefore resolves outside the download directory.\n\nBecause the peer also controls the piece hashes and the served bytes, content verification passes, so a malicious magnet or peer writes attacker-chosen content to an attacker-chosen path on the downloading host."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-06-30T11:04:32.211Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57079", "state": "PUBLISHED", "dateUpdated": "2026-06-30T13:52:04.135Z", "dateReserved": "2026-06-23T18:20:33.513Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-06-30T11:04:32.211Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{}

{}

{"created": "2026-06-30T12:30:13.628140+00:00", "updated": "2026-06-30T12:30:13.628146+00:00", "vendors": []}