CVE-2026-110684
CVE-2026-110684 · Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify. encode_stringify writes a value in its string form under allow_stringify, under convert_blessed for objects without TO_JSON, and under allow_bignum. For an array or hash object with a "" overload, and from 4.20 a scalar object, it takes an extra reference that is never released, so the object and everything it references are never freed. From 4.10 it also never frees its copy of the string. Repeatedly encoding data that contains such values grows process memory without bound.
EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
libcpanel-json-xs-perl Debian:12
- Versions
- 4.35-1
- 4.35-1+deb12u1
- 4.36-1
- 4.37-1
- 4.38-1
- 4.39-1
- 4.39-2
- 4.39-2~deb13u1
- 4.40-1
- 4.41-1
- 4.42-1
- 4.51-1
- 4.80-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Debian:13
- Versions
- 4.39-1
- 4.39-2
- 4.39-2~deb13u1
- 4.40-1
- 4.41-1
- 4.42-1
- 4.51-1
- 4.80-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Debian:14
- Versions
- 4.39-1
- 4.39-2
- 4.39-2~deb13u1
- 4.40-1
- 4.41-1
- 4.42-1
- 4.51-1
- Affected ranges
- ECOSYSTEM: < 4.80-1
Update to 4.80-1
libcpanel-json-xs-perl Ubuntu:16.04:LTS
- Versions
- 3.0115-1
- 3.0210-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:18.04:LTS
- Versions
- 3.0225-1build1
- 3.0239-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:20.04:LTS
- Versions
- 4.12-1
- 4.12-1build1
- 4.15-1
- 4.17-1
- 4.18-1
- 4.19-1
- 4.19-1build1
- 4.19-1ubuntu0.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:22.04:LTS
- Versions
- 4.25-1build1
- 4.25-1build2
- 4.27-1
- 4.27-1build1
- 4.27-1ubuntu0.1
- 4.27-1ubuntu0.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:24.04:LTS
- Versions
- 4.37-1
- 4.37-1build1
- 4.37-1build2
- 4.37-1build3
- 4.37-1ubuntu0.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:26.10
- Versions
- 4.40-1
- 4.42-1
- 4.42-1build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libcpanel-json-xs-perl Ubuntu:26.04:LTS
- Versions
- 4.39-2
- 4.40-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published