What is CVE-2026-43825?

CVE-2026-43825 is a high-severity vulnerability in Apache Software Foundation Opennlp :: Core Ml Libsvm, classified under Deserialization of Untrusted Data. CVSS score: 7.3/10. Published 2026-07-06.

How severe is CVE-2026-43825?

High severity. CVSS v3 base score is 7.3 out of 10.

Deserialization in Apache Software Foundation Opennlp :: Core Ml Libsvm

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.deser…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Apache Software Foundation Opennlp :: Core Ml Libsvm — versions 3.0.0-M1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@apache.org (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-43825?: CVE-2026-43825 is a high-severity vulnerability in Apache Software Foundation Opennlp :: Core Ml Libsvm, classified under Deserialization of Untrusted Data. CVSS score: 7.3/10. Published 2026-07-06.
How severe is CVE-2026-43825?: High severity. CVSS v3 base score is 7.3 out of 10.