CVE-2026-110682Published

Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level numbers in incr_parse

Exact source revision recorded 29 Oct 2026 18:12:12 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-110682

Published

Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level numbers in incr_parse. allow_nonref is enabled by default and incr_parse inherits it. A top-level number, true, false or null has no closing delimiter, so the incremental parser decodes whatever has arrived. The bytes 12 decode as one value when read together, but as 1 and then 2 when split across two reads. A peer that can influence read boundaries can change how many messages a stream consumer decodes and what values they carry.

Source published: 19 Oct 2026 18:12:09 UTC
Source modified: 29 Oct 2026 16:47:42 UTC
Observed here: 29 Oct 2026 18:12:12 UTC
Source terms: CVE Program Terms of Use

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