CVE-2026-22186
High
Description
Bio-Formats versions up to and including 8.3.0 contain an XML External Entity (XXE) vulnerability in the Leica Microsystems metadata parsing component (e.g., XLEF). The parser uses an insecurely configured DocumentBuilderFactory when processing Leica XML-based metadata files, allowing external entity expansion and external DTD loading. A crafted metadata file can trigger outbound network requests (SSRF), access local system resources where readable, or cause a denial of service during XML parsing.
SeverityHigh
CVSS7.1
Exploit probability—
ProductOpenmicroscopy Bio-formats
PublishedJan 7, 2026
First seenJan 7, 2026
Weakness typeCWE-611XML external entity (XXE)
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openmicroscopy bio-formats | v ≤ 8.3.0 | — |
| ome:pom-bio-formatsMaven | v ≤ 8.3.0 | — |
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