CVE-2026-32327: Apache Portable Runtime Utility: apr-util XML stack recursion crash
CSIRTS triage
- What
- XML parsing in apr-util enters unbounded stack recursion leading to a denial-of-service crash.
- Who is affected
- Applications using apr-util for XML processing.
- Urgency
- Medium severity with CVSS 5.3; remediation should be prioritized but is not critical.
- Action
- Update apr-util to a version containing the stack recursion fix.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32327
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-323270.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-32327 | coverage & exploitation status | NVD · CVE.org |
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