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CVE-2026-32327 is a moderate-severity vulnerability in Apache Portable Runtime Utility (APR-util) affecting version 1.6.3 and earlier. The flaw is in the apr_xml_quote_elem() function and can be triggered in applications or libraries that parse XML from untrusted sources and invoke this function during processing. The bug allows a stack recursion attack, causing uncontrolled or excessive recursive behavior in the call path associated with XML element quoting. In affected consumers, specially crafted untrusted XML input can drive the vulnerable code path and exhaust stack space, resulting in process instability or termination.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.