{"id":"AZL-109863","summary":"CVE-2026-110677 affecting package perl-Cpanel-JSON-XS 4.39-1","details":"Cpanel::JSON::XS versions from 4.28 before 4.80 for Perl leak the array collecting duplicate key values under dupkeys_as_arrayref in decode_hv.\n\nWith dupkeys_as_arrayref, the values of a duplicate object key are collected into a new array. An extra reference is never released, so the array and every value in it outlive the decoded structure. The array also leaks when decoding fails after a duplicate key.\n\nRepeatedly decoding untrusted JSON with a duplicate key holding a large value exhausts process memory.","modified":"2026-10-30T05:32:16Z","published":"2026-10-19T19:17:21Z","upstream":["CVE-2026-110677"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110677"}],"affected":[{"package":{"name":"perl-Cpanel-JSON-XS","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/perl-Cpanel-JSON-XS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.39-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109863.json"}}],"schema_version":"1.9.2"}