{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110677", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-10-14T13:24:19.060Z", "datePublished": "2026-10-19T18:11:53.004Z", "dateUpdated": "2026-10-19T18:11:53.004Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Cpanel::JSON::XS"], "packageName": "Cpanel-JSON-XS", "packageURL": "pkg:cpan/Cpanel-JSON-XS", "programFiles": ["XS.xs"], "programRoutines": [{"name": "decode_hv"}], "repo": "https://github.com/rurban/Cpanel-JSON-XS", "versions": [{"lessThan": "4.80", "status": "affected", "version": "4.28", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-10-19T18:11:53.004Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/edb13030a708afc2cde0d2629fb6bdd31288ce6c.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to Cpanel-JSON-XS 4.80 or later."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-10-14T00:00:00.000Z", "value": "Version 4.80 released with fix."}], "title": "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", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Cpanel::JSON::XS"], "packageName": "Cpanel-JSON-XS", "packageURL": "pkg:cpan/Cpanel-JSON-XS", "programFiles": ["XS.xs"], "programRoutines": [{"name": "decode_hv"}], "repo": "https://github.com/rurban/Cpanel-JSON-XS", "versions": [{"lessThan": "4.80", "status": "affected", "version": "4.28", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-110677", "lastModified": "2026-10-19T20:50:17.967", "metrics": {}, "published": "2026-10-19T19:17:21.437", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/edb13030a708afc2cde0d2629fb6bdd31288ce6c.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}