CVE-2026-110675

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Source
https://cve.org/CVERecord?id=CVE-2026-110675
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110675.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-110675
Downstream
Published
2026-10-19T18:11:35Z
Modified
2026-10-20T02:44:35Z
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.

With 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.

Later operations on the key, including lc, uc or encoding the hash again, die with a malformed UTF-8 error.

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

Affected packages

Git / github.com/rurban/cpanel-json-xs

Affected ranges

Type
GIT
Repo
https://github.com/rurban/cpanel-json-xs
Events
Introduced
1b8988728bc68fdc33a26ef9779e57b37b90775f
Fixed
5552a527abb648d9eb4134e91412800013ddecb9
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "4.33"
        },
        {
            "fixed":  "4.80"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

4.*
4.33
4.34
4.35
4.36
4.37
4.38
4.39
4.40
4.41
4.42
4.43
4.44
4.50
4.51
4.52
4.53

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110675.json"