---
title: "CVE-2025-64408: Apache Causeway vulnerable to deserialization in Java"
url: https://erroneo.us/security/cve/CVE-2025-64408/
description: "CVE-2025-64408 (org.apache.causeway.commons:causeway-commons (Maven)): Apache Causeway faces Java deserialization vulnerabilities that allow remote code…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-11-19
date_modified: 2026-02-26
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-64408"
kev: false
cvss: 9.3
epss: 0.11555
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-64408: Apache Causeway vulnerable to deserialization in Java

**Signal:** High exploit likelihood. EPSS ranks it in the top 5% of all CVEs for likely exploitation in the next 30 days. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 11.6% , percentile 96: FIRST’s model estimates a 11.6% chance of exploitation activity in the next 30 days, higher than 96% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.apache.causeway.commons:causeway-commons (Maven) < 3.5.0, fixed in 3.5.0 ; org.apache.causeway.core:causeway-applib (Maven) < 3.5.0, fixed in 3.5.0 ; org.apache.causeway.core:causeway-core (Maven) < 3.5.0, fixed in 3.5.0 ; org.apache.causeway.viewer:causeway-viewer-wicket (Maven) < 3.5.0, fixed in 3.5.0 . Check your lockfile, including transitive dependencies.

## What it is

Apache Causeway faces Java deserialization vulnerabilities that allow remote code execution (RCE) through user-controllable URL parameters. These vulnerabilities affect all applications using Causeway's ViewModel functionality and can be exploited by authenticated attackers to execute arbitrary code with application privileges. This issue affects all current versions. Users are recommended to upgrade to version 3.5.0, which fixes the issue.

## Affected packages

- Maven `org.apache.causeway.commons:causeway-commons` < 3.5.0 → fixed: 3.5.0
- Maven `org.apache.causeway.core:causeway-applib` < 3.5.0 → fixed: 3.5.0
- Maven `org.apache.causeway.core:causeway-core` < 3.5.0 → fixed: 3.5.0
- Maven `org.apache.causeway.viewer:causeway-viewer-wicket` < 3.5.0 → fixed: 3.5.0

## Affected products (CVE record)

- Apache Software Foundation Apache Causeway: 2.0.0 <= 3.4.0, 4.0.0-M1

## Severity

- CISA-ADP CVSS 3.1: 6.3 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`
- GitHub CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 11.55% probability of exploitation activity in the next 30 days; percentile 96.

## Sources

- [lists.apache.org](https://lists.apache.org/thread/rjlg4spqhmgy1xgq9wq5h2tfnq4pm70b)
- [GitHub Advisory GHSA-wq4c-57mh-5f7g](https://github.com/advisories/GHSA-wq4c-57mh-5f7g)
- [CVE.org record CVE-2025-64408](https://www.cve.org/CVERecord?id=CVE-2025-64408)
- [NVD entry CVE-2025-64408](https://nvd.nist.gov/vuln/detail/CVE-2025-64408)
- [openwall.com](http://www.openwall.com/lists/oss-security/2025/11/19/1)
- [github.com](https://github.com/apache/causeway/commit/bef00f58d2a2cba9a45230c9d117a0327e4c7038)
- [github.com](https://github.com/apache/causeway/commit/e66290fe9be87aa0e4c5dc55bce1993a54330624)
- [github.com](https://github.com/apache/causeway/commit/e6bf00c63c33cfa894a19d6122526a1aec227d14)
- [issues.apache.org](https://issues.apache.org/jira/browse/CAUSEWAY-3939)

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Source page: https://erroneo.us/security/cve/CVE-2025-64408/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt