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CVE Vulnerability Details :
CVE-2026-22186
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-07 Jan, 2026 | 20:26
Updated At-18 Mar, 2026 | 16:45
Rejected At-
▼CVE Numbering Authority (CNA)
Bio-Formats <= 8.3.0 XXE in Leica XLEF Metadata Parser

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.

Affected Products
Vendor
Open Microscopy Environment
Product
Bio-Formats
Default Status
unaffected
Versions
Affected
  • From 0 through 8.3.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-611CWE-611 Improper Restriction of XML External Entity Reference
Type: CWE
CWE ID: CWE-611
Description: CWE-611 Improper Restriction of XML External Entity Reference
Metrics
VersionBase scoreBase severityVector
4.04.6MEDIUM
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
Version: 4.0
Base score: 4.6
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Ron Edgerson
finder
Beatriz Fresno Naumova
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://seclists.org/fulldisclosure/2026/Jan/6
technical-description
exploit
https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp
vendor-advisory
patch
https://docs.openmicroscopy.org/bio-formats/
product
release-notes
https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser
third-party-advisory
Hyperlink: https://seclists.org/fulldisclosure/2026/Jan/6
Resource:
technical-description
exploit
Hyperlink: https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp
Resource:
vendor-advisory
patch
Hyperlink: https://docs.openmicroscopy.org/bio-formats/
Resource:
product
release-notes
Hyperlink: https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found