CVE-2026-124539
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Nov 14, 2026
Vendor
unknown
Description
JSON::XS versions before 4.05 for Perl leak the decoded key of an object rejected for a missing colon in decode_hv. Unless it is short plain ASCII, a quoted key is decoded into a new scalar. Nothing frees that scalar when the object is rejected for a missing ':' after the key. A process that keeps running after a failed decode retains one key per rejected document, with its size chosen by the sender. Repeated requests exhaust process memory.