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NVD Vulnerability Details :
CVE-2026-22186
Modified
More InfoOfficial Page
Source-disclosure@vulncheck.com
View Known Exploited Vulnerability (KEV) details
Published At-07 Jan, 2026 | 21:16
Updated At-18 Mar, 2026 | 17:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.6MEDIUM
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/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
Primary3.17.1HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Type: Secondary
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/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
Type: Primary
Version: 3.1
Base score: 7.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CPE Matches
openmicroscopy
openmicroscopy
>>bio-formats>>Versions up to 8.3.0(inclusive)
cpe:2.3:a:openmicroscopy:bio-formats:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-611Secondarydisclosure@vulncheck.com
CWE ID: CWE-611
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://docs.openmicroscopy.org/bio-formats/disclosure@vulncheck.com
Release Notes
https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjpdisclosure@vulncheck.com
N/A
https://seclists.org/fulldisclosure/2026/Jan/6disclosure@vulncheck.com
Mailing List
https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parserdisclosure@vulncheck.com
Third Party Advisory
Hyperlink: https://docs.openmicroscopy.org/bio-formats/
Source: disclosure@vulncheck.com
Resource:
Release Notes
Hyperlink: https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://seclists.org/fulldisclosure/2026/Jan/6
Source: disclosure@vulncheck.com
Resource:
Mailing List
Hyperlink: https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser
Source: disclosure@vulncheck.com
Resource:
Third Party Advisory
Change History
0Changes found
Details not found