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Advisories

Bio-Formats <= 8.3.0 XXE in Leica XLEF Metadata Parser

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severity
medium
date
Affecting

  • Bio-Formats <= 8.3.0

CWE
  • CWE-611 Improper Restriction of XML External Entity Reference
CVSS
4.6
CVSS V4 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
Credit
Ron Edgerson, Beatriz Fresno Naumova
Description
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.

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