CVE-2026-110685 Affecting libcpanel-json-xs-perl package, versions <4.80-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-LIBCPANELJSONXSPERL-21249316
- published20 Oct 2026
- disclosed19 Oct 2026
Introduced: 19 Oct 2026
NewCVE-2026-110685 (opens in a new tab)How to fix?
Upgrade Debian:unstable libcpanel-json-xs-perl to version 4.80-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcpanel-json-xs-perl package and not the libcpanel-json-xs-perl package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decode_tag.
With allow_tags, a tagged value's class name and argument array are decoded and passed to the class's THAW method. Both are released only after THAW returns, so a THAW that dies leaves the whole decoded argument structure allocated.
Each rejected document leaks data of a size the sender chooses, so a process that catches the error and keeps running exhausts its memory.