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
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.
CVE-2026-110682
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-110682
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/rurban/Cpanel-JSON-XS",
"modules": [
"Cpanel::JSON::XS"
],
"versions": [
{
"status": "affected",
"version": "4.42",
"lessThan": "4.80",
"versionType": "custom"
}
],
"packageURL": "pkg:cpan/Cpanel-JSON-XS",
"packageName": "Cpanel-JSON-XS",
"programFiles": [
"XS.xs"
],
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"programRoutines": [
{
"name": "Cpanel::JSON::XS::incr_parse"
}
]
}
]- Related CVEs
- CVE-2026-110682
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #39690 · Revision 1
- Added to Heist Feed
- Publisher date