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CVE

CVE-2026-22186

Bio-Formats has an XML External Entity (XXE) vulnerability
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CVE

CVE-2026-22186

Bio-Formats has an XML External Entity (XXE) vulnerability

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.

Package Versions Affected

Package Version
patch Availability
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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
4.6
-
4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-22186, https://docs.openmicroscopy.org/bio-formats, https://github.com/ome/bioformats, https://seclists.org/fulldisclosure/2026/Jan/6, https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser

Severity

7.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.1
EPSS Probability
0.00016%
EPSS Percentile
0.03246%
Introduced Version
0
Fix Available

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