{"id":"CVE-2026-110675","summary":"Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl accept malformed UTF-8 in bare hash keys under allow_barekey in decode_hv","details":"Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl accept malformed UTF-8 in bare hash keys under allow_barekey in decode_hv.\n\nWith utf8 and allow_barekey, which relaxed enables, a quoted key is validated as UTF-8 but a bare key's bytes are stored as a UTF-8 flagged string without any check. Malformed UTF-8, control bytes and backslashes reach the decoded hash, while malformed UTF-8 and control bytes in a quoted key or a value are rejected.\n\nLater operations on the key, including lc, uc or encoding the hash again, die with a malformed UTF-8 error.","modified":"2026-10-20T02:44:35.479739390Z","published":"2026-10-19T18:11:35.561Z","database_specific":{"cna_assigner":"CPANSec","cwe_ids":["CWE-1286"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110675.json"},"references":[{"type":"WEB","url":"https://cpan.org/modules"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110675.json"},{"type":"PACKAGE","url":"https://github.com/rurban/Cpanel-JSON-XS"},{"type":"FIX","url":"https://github.com/rurban/Cpanel-JSON-XS/commit/c2cd02281b9d6904ca0aff2740154e742abc070c.patch"},{"type":"ADVISORY","url":"https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110675"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rurban/cpanel-json-xs","events":[{"introduced":"1b8988728bc68fdc33a26ef9779e57b37b90775f"},{"fixed":"5552a527abb648d9eb4134e91412800013ddecb9"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.33"},{"fixed":"4.80"}]}}],"versions":["4.53","4.52","4.51","4.50","4.44","4.43","4.42","4.41","4.40","4.39","4.38","4.37","4.36","4.35","4.34","4.33"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110675.json"}}],"schema_version":"1.9.0"}