CVE-2026-56412
CSIRTS triage
- What
- libexpat lacks handler call depth tracking, leading to a use-after-free condition.
- Who is affected
- Applications using libexpat versions before 2.8.2.
- Urgency
- Remediation is medium urgency as the severity is moderate and no exploitation has been reported.
- Action
- Upgrade to libexpat version 2.8.2 or later.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
Advisory coverage (1)
External references
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[](https://www.csirts.com/cve/CVE-2026-56412)