{"schemaVersion":3,"id":"CVE-2026-48961","aliases":["UBUNTU-CVE-2026-48961","DEBIAN-CVE-2026-48961","openSUSE-SU-2026:10969-1"],"status":"published","duplicateOf":null,"title":"IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID","description":"IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID.\n\nWhen decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255.\n\nLibrary callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool.","dates":{"published":"2026-05-27T02:34:52.228Z","modified":"2026-05-29T15:52:06.965Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.3,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.3,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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Handling of Exceptional Conditions","description":"The product does not handle or incorrectly handles an exceptional condition.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/755.html"}],"affected":[{"vendor":"debian","product":"libio-compress-perl","name":"libio-compress-perl","label":"libio-compress-perl","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/libio-compress-perl","purlType":"deb","versions":[{"text":"< 2.213-1+deb13u1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.220-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.213-1+deb13u1 | < 2.220-1","eol":null,"hubHref":null},{"vendor":"debian","product":"perl","name":"perl","label":"perl","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/perl","purlType":"deb","versions":[{"text":"< 5.40.1-6+deb13u1","noFixRecorded":false,"fixedIn":null},{"text":"< 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