# FEDORA-2026-4447E52D23: Security update for 3 packages

FEDORA-2026-4447E52D23, released November 7, 2026, fixes 15 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/fedora-2026-4447e52d23
- Platform: Linux
- Released: Nov 7, 2026
- Priority: Urgent (Closes CVE-2026-110685, rated Critical)
- CVEs: 15, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4447e52d23

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [perl-Cpanel-JSON-XS](https://patchblox.com/security/data/product/linux/perl-cpanel-json-xs.md) | Fedora 43 | 4.80-1.fc43 |
| [perl-Cpanel-JSON-XS-debuginfo](https://patchblox.com/security/data/product/linux/perl-cpanel-json-xs-debuginfo.md) | Fedora 43 | 4.80-1.fc43 |
| [perl-Cpanel-JSON-XS-debugsource](https://patchblox.com/security/data/product/linux/perl-cpanel-json-xs-debugsource.md) | Fedora 43 | 4.80-1.fc43 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-110685](https://patchblox.com/security/data/cve/CVE-2026-110685.md) | Urgent | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies... | 9.1 | 0.0051 |  |
| [CVE-2026-110672](https://patchblox.com/security/data/cve/CVE-2026-110672.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a mi... | 7.5 | 0.0049 |  |
| [CVE-2026-110673](https://patchblox.com/security/data/cve/CVE-2026-110673.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in de... | 7.5 | 0.0049 |  |
| [CVE-2026-110676](https://patchblox.com/security/data/cve/CVE-2026-110676.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by encoding exponent notation as full decimal... | 7.5 | 0.0049 |  |
| [CVE-2026-110678](https://patchblox.com/security/data/cve/CVE-2026-110678.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by buffering incremental input past max_size i... | 7.5 | 0.0049 |  |
| [CVE-2026-110677](https://patchblox.com/security/data/cve/CVE-2026-110677.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.28 before 4.80 for Perl leak the array collecting duplicate key values under dupkeys... | 7.5 | 0.0049 |  |
| [CVE-2026-110688](https://patchblox.com/security/data/cve/CVE-2026-110688.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.51 before 4.80 for Perl allow quadratic CPU use by revalidating the remaining buffer... | 7.5 | 0.0049 |  |
| [CVE-2026-110680](https://patchblox.com/security/data/cve/CVE-2026-110680.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.20 before 4.80 for Perl write out of bounds when a tied or shared hash grows during... | 7.5 | 0.0047 |  |
| [CVE-2026-110675](https://patchblox.com/security/data/cve/CVE-2026-110675.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl accept malformed UTF-8 in bare hash keys under allow_barekey... | 8.1 | 0.0045 |  |
| [CVE-2026-110684](https://patchblox.com/security/data/cve/CVE-2026-110684.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding va... | 8.1 | 0.0045 |  |
| [CVE-2026-110681](https://patchblox.com/security/data/cve/CVE-2026-110681.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl use the parent interpreter's scalars from a parser object cloned into... | 8.1 | 0.0043 |  |
| [CVE-2026-110682](https://patchblox.com/security/data/cve/CVE-2026-110682.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level num... | 7.5 | 0.0042 |  |
| [CVE-2026-110687](https://patchblox.com/security/data/cve/CVE-2026-110687.md) | High | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16... | 7.5 | 0.0042 |  |
| [CVE-2026-110674](https://patchblox.com/security/data/cve/CVE-2026-110674.md) | Routine | libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion... | 6.5 | 0.0051 |  |
| [CVE-2026-110686](https://patchblox.com/security/data/cve/CVE-2026-110686.md) | Routine | libcpanel-json-xs-perl: Cpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decodin... | 6.5 | 0.0043 |  |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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