# Cpanel::JSON::XS vulnerabilities Source: https://junglewise.ai/threats/technologies/cpanel-json-xs Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/cpanel-json-xs.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 7 vulnerabilities in Cpanel::JSON::XS: 0 in the last 7 days and 7 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-110688, was published on 19 October 2026. 7 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 7 - Last 90 days: 7 - All time: 7 (0 critical, 0 exploited in the wild) ## About Cpanel::JSON::XS Perl module for encoding and decoding JSON data structures. ## Latest Cpanel::JSON::XS vulnerabilities - [CVE-2026-110688: Cpanel::JSON::XS quadratic CPU use in incremental parsing](https://junglewise.ai/threats/cve-2026-110688-cpanel-json-xs-versions-from-4-51-before-4-80-for-perl-allow) (info, published 19 Oct 2026) - [CVE-2026-110686: Cpanel::JSON::XS use-after-free in filter callbacks](https://junglewise.ai/threats/cve-2026-110686-cpanel-json-xs-versions-before-4-80-for-perl-use-freed-filter) (info, published 19 Oct 2026) - [CVE-2026-110684: Cpanel::JSON::XS memory leak in encode_stringify](https://junglewise.ai/threats/cve-2026-110684-cpanel-json-xs-versions-from-3-0202-before-4-80-for-perl-leak) (info, published 19 Oct 2026) - [CVE-2026-110681: Cpanel::JSON::XS use-after-free in ithread parser objects](https://junglewise.ai/threats/cve-2026-110681-cpanel-json-xs-versions-before-4-80-for-perl-use-the-parent) (info, published 19 Oct 2026) - [CVE-2026-110680: Cpanel::JSON::XS out of bounds write in canonical hash encoding](https://junglewise.ai/threats/cve-2026-110680-cpanel-json-xs-versions-from-4-20-before-4-80-for-perl-write-out) (info, published 19 Oct 2026) - [CVE-2026-110678: Cpanel::JSON::XS memory exhaustion in incr_parse](https://junglewise.ai/threats/cve-2026-110678-cpanel-json-xs-versions-before-4-80-for-perl-allow-memory) (info, published 19 Oct 2026) - [CVE-2026-110676: Cpanel::JSON::XS memory exhaustion in exponent encoding](https://junglewise.ai/threats/cve-2026-110676-cpanel-json-xs-versions-before-4-80-for-perl-allow-memory) (info, published 19 Oct 2026) ## Most severe Cpanel::JSON::XS vulnerabilities - [CVE-2026-110688: Cpanel::JSON::XS quadratic CPU use in incremental parsing](https://junglewise.ai/threats/cve-2026-110688-cpanel-json-xs-versions-from-4-51-before-4-80-for-perl-allow) (info, published 19 Oct 2026) - [CVE-2026-110686: Cpanel::JSON::XS use-after-free in filter callbacks](https://junglewise.ai/threats/cve-2026-110686-cpanel-json-xs-versions-before-4-80-for-perl-use-freed-filter) (info, published 19 Oct 2026) - [CVE-2026-110684: Cpanel::JSON::XS memory leak in encode_stringify](https://junglewise.ai/threats/cve-2026-110684-cpanel-json-xs-versions-from-3-0202-before-4-80-for-perl-leak) (info, published 19 Oct 2026) - [CVE-2026-110681: Cpanel::JSON::XS use-after-free in ithread parser objects](https://junglewise.ai/threats/cve-2026-110681-cpanel-json-xs-versions-before-4-80-for-perl-use-the-parent) (info, published 19 Oct 2026) - [CVE-2026-110680: Cpanel::JSON::XS out of bounds write in canonical hash encoding](https://junglewise.ai/threats/cve-2026-110680-cpanel-json-xs-versions-from-4-20-before-4-80-for-perl-write-out) (info, published 19 Oct 2026) - [CVE-2026-110678: Cpanel::JSON::XS memory exhaustion in incr_parse](https://junglewise.ai/threats/cve-2026-110678-cpanel-json-xs-versions-before-4-80-for-perl-allow-memory) (info, published 19 Oct 2026) - [CVE-2026-110676: Cpanel::JSON::XS memory exhaustion in exponent encoding](https://junglewise.ai/threats/cve-2026-110676-cpanel-json-xs-versions-before-4-80-for-perl-allow-memory) (info, published 19 Oct 2026) ## Vulnerabilities per week 7 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 7 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other CPAN technologies - [CPAN Text::CSV XS](https://junglewise.ai/threats/technologies/cpan-text-csv-xs): 7 vulnerabilities - [CPAN Net::IDN::Punycode](https://junglewise.ai/threats/technologies/net-idn-punycode): 5 vulnerabilities - [CPAN Net::CIDR::Lite](https://junglewise.ai/threats/technologies/net-cidr-lite): 3 vulnerabilities - [CPAN YAML-Syck](https://junglewise.ai/threats/technologies/yaml-syck): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Cpanel::JSON::XS vulnerabilities", https://junglewise.ai/threats/technologies/cpanel-json-xs, 9 November 2026.