CVE-2026-110673

Not scored yetLast modified Oct 19, 2026

Description

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in decode_tag.

With allow_tags, "(" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not counted against max_depth.

A run of "(" bytes exhausts the C stack and triggers an uncatchable segmentation fault regardless of max_depth.

Metrics

No CVSS score has been published yet.

Weakness enumeration

CWE-674

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 19, 2026
Last modified
Oct 19, 2026
NVD status
Awaiting Analysis

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CVE-2026-110673: Unscored | Vulnix