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CVE-2026-22186

HIGH

7.1

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.

CVE Details

CVSS v3.1 Score7.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published1/7/2026

Last Modified3/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

openmicroscopy:bio-formats

Weaknesses (CWE)

CWE-611

References

https://docs.openmicroscopy.org/bio-formats/(disclosure@vulncheck.com)

https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp(disclosure@vulncheck.com)

https://seclists.org/fulldisclosure/2026/Jan/6(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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