CVE Explorer

CVE-2026-43825

Untrusted Java Deserialization in Apache OpenNLP SvmDoccatModel Versions Affected: before 3.0.0-M4 (libsvm document categorization module; introduced in OPENNLP-1808 and only present on the 3.x line) Description: SvmDoccatModel.deserialize(InputStream) reads an attacker-controlled stream with java.io.ObjectInputStream and calls readObject() without an ObjectInputFilter installed. ObjectInputStream materialises every class referenced in the stream before the resulting object is cast to SvmD

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b58486fd93b5236ffcf02493b404e3c3d990b86b82e08c509dd92c18407a74df

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.opennlp:opennlp-ml-libsvm","product":"Apache OpenNLP :: Core :: ML :: LibSVM","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.0.0-M4","status":"affected","version":"3.0.0-M1","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:c6850f406afd178152f5af21b0ea968a12150a43b57042f2d2269cea0039d92a · sha256:b7de6e01f49cb5e0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:c6850f406afd178152f5af21b0ea968a12150a43b57042f2d2269cea0039d92a · sha256:b7de6e01f49cb5e0… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c6850f406afd178152f5af21b0ea968a12150a43b57042f2d2269cea0039d92a · sha256:b7de6e01f49cb5e0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"url":"http://www.openwall.com/lists/oss-security/2026/07/06/9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c6850f406afd178152f5af21b0ea968a12150a43b57042f2d2269cea0039d92a · sha256:b7de6e01f49cb5e0… · /containers/adp/1/references/0

{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/c7kom0pgk9cbpfnbooh5m3g85ndf50hn"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c6850f406afd178152f5af21b0ea968a12150a43b57042f2d2269cea0039d92a · sha256:b7de6e01f49cb5e0… · /containers/cna/references/0

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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