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CVE-2026-22186

24
FAUCET Score

CVE-2026-22186 is an XML External Entity (XXE) vulnerability affecting Bio-Formats versions up to and including 8.3.0, specifically within the Leica Microsystems metadata parsing component. This flaw stems from an insecurely configured DocumentBuilderFactory, allowing a crafted metadata file to trigger Server-Side Request Forgery (SSRF), local file access, or denial of service. With a CVSS score of 7.1 (HIGH), this vulnerability requires user interaction (UI:R) and local access (AV:L) but can lead to high confidentiality and availability impacts. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.3.0CPE matchmatch criteria
cpe:2.3:a:openmicroscopy:bio-formats:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

4.6MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 2nd percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

mavenGHSA-fcqj-76g3-q7qmmedium

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

Jan 7, 2026

References

docs.openmicroscopy.org / bio-formats
Release Notes
github.com / ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp
seclists.org / fulldisclosure/2026/Jan/6
Mailing List
vulncheck.com / advisories/bio-formats-xxe-in-leica-xlef-metadata-parser
Third Party Advisory