What is the CVSS score of CVE-2026-22186?

CVE-2026-22186 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Bio Formats are affected by CVE-2026-22186?

CVE-2026-22186 presents moderate security risk, a XML external entity vulnerability rated CVSS 7.1. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2026-22186?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Bio Formats CVE-2026-22186

HIGH

Improper Restriction of XML External Entity Reference (CWE-611)

2026-01-07 disclosure@vulncheck.com

GHSA-fcqj-76g3-q7qm

XXE Denial Of Service SSRF Bio Formats

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 07, 2026 - 21:16 nvd

HIGH 7.1

DescriptionCVE.org

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.

AnalysisAI

Bio-Formats versions up to 8.3.0 contain an XML External Entity (XXE) injection vulnerability in the Leica Microsystems metadata parser that fails to disable external entity expansion. A local attacker can exploit this by crafting malicious XML metadata files to trigger server-side request forgery, read local files, or cause denial of service. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

User opens crafted Leica metadata file

Exploit

Bio-Formats parser loads insecure DocumentBuilderFactory

Execution

External entity expands and triggers XXE

Impact

Attacker reads sensitive files or causes DoS