{"id":"CVE-2026-110686","title":"Cpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decoding in decode_hv","summary":"Cpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decoding in decode_hv.\n\nA decode copies the parser's filter_json_object and filter_json_single_key_object callbacks without tak…","severity":"none","cwe":["CWE-416"],"product":"Cpanel-JSON-XS","affected":["Cpanel-JSON-XS < 4.80"],"published":"2026-10-19","updated":"2026-10-19","sourceUpdated":"2026-10-19T18:12:19.804Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110686","references":[{"url":"https://github.com/rurban/Cpanel-JSON-XS/commit/c3e7e3c5b0b72d82b072c6a7cfb8c34cec4c7ea2.patch"},{"url":"https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"}],"tags":["cve.org"],"ingestedAt":"2026-10-19T18:35:50.142Z","slug":"CVE-2026-110686","body":"## Overview\n\nCpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decoding in decode_hv.\n\nA decode copies the parser's filter_json_object and filter_json_single_key_object callbacks without taking references to them. A filter callback that removes the last single-key filter frees the callback table while the decode in progress still uses it. The next object is dispatched through freed memory and can crash the process.\n\n## Affected\n\n- `Cpanel-JSON-XS < 4.80`\n\n## Remediation\n\nUpgrade to Cpanel-JSON-XS 4.80 or later.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}