CVE Explorer

CVE-2026-22186

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 parsin

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ee290efb225b31e6b72751f26fa383c9dd99c9f5c973b005691386fe5b4a0d5f

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Bio-Formats","vendor":"Open Microscopy Environment","versions":[{"lessThanOrEqual":"8.3.0","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"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","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-611","description":"CWE-611 Improper Restriction of XML External Entity Reference","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"tags":["product","release-notes"],"url":"https://docs.openmicroscopy.org/bio-formats/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/references/2

{"tags":["vendor-advisory"],"url":"https://github.com/ome/bioformats/security/advisories/GHSA-x9vc-qh97-8gjp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/references/1

{"tags":["technical-description","exploit"],"url":"https://seclists.org/fulldisclosure/2026/Jan/6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/references/0

{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bio-formats-xxe-in-leica-xlef-metadata-parser"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e71ff938fe4d1ea90013298815a5dfc00b2becf98f15113388947188955b1566 · sha256:79ad3e815048e463… · /containers/cna/references/3

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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