[GHSA-4v8g-86x5-3vrc] Apache OpenNLP DictionaryEntryPersistor Vulnerable to XML External Entity (XXE) via Unsanitized Dictionary Parsing - #9440
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September 10, 2026 12:31
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There was another previous PR, but with a less comprehensive update: #8890 |
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This advisory currently marks every
org.apache.opennlp:opennlp-toolsversion below 2.5.9 as affected (introduced: "0"→fixed: "2.5.9"), with 1.9.5 in the affectedversions. This contradicts the CNA's (Apache Software Foundation,security@apache.org) own structured data for CVE-2026-40682: https://nvd.nist.gov/vuln/detail/cve-2026-40682Per the CVE record (NVD
affectedfield), the affected ranges are:[0, 1.9.5)[2.0, 2.5.9)[3.0.0-M1, 3.0.0-M3)defaultStatus)Consumers of the GitHub Advisory Database (Trivy, Dependabot, OSV mirrors, etc.) flag opennlp-tools 1.9.5 with a CRITICAL, "no fix below 2.5.9" finding. Example from Trivy:
org.apache.opennlp:opennlp-tools 1.9.5 — CRITICAL CVE-2026-40682 — fixed in: 2.5.9, 3.0.0-M3
This pushes users of the last (and fixed) 1.x release toward an unnecessary major-version upgrade (1.9.5 → 2.5.9).