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

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: apache) — https://github.com/apache/axis-axis2-java-core/commit/1671a68660df39459bf22f7b00309e2a8e782117
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: apache) — https://github.com/apache/axis-axis2-java-core/commit/2b98e5a31c793589915711f5e29fb4ffb697de70
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: apache) — https://github.com/apache/axis-axis2-java-core/commit/94c935d1406bc0875daebd36994595efa2f48ae0

## Affected products and versions

- Apache Software Foundation / Apache Axis2/Java (org.apache.axis2:axis2-kernel): ≥ 0; < 2.0.2 (affected, semver). Source: CNA: apache

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-770

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://axis.apache.org/axis2/java/core/release-notes/2.0.2.html (CNA: apache; release-notes)

- https://github.com/apache/axis-axis2-java-core/commit/1671a68660df39459bf22f7b00309e2a8e782117 (CNA: apache; patch)

- https://github.com/apache/axis-axis2-java-core/commit/2b98e5a31c793589915711f5e29fb4ffb697de70 (CNA: apache; patch)

- https://github.com/apache/axis-axis2-java-core/commit/94c935d1406bc0875daebd36994595efa2f48ae0 (CNA: apache; patch)

- https://lists.apache.org/thread.html/78poyrrggq8tjoos5tgw508m7oylqjlg (CNA: apache; vendor-advisory)

- http://www.openwall.com/lists/oss-security/2026/11/06/25 (ADP: CVE)

- https://axis.apache.org/axis2/java/core/release-notes/2.0.2.html (security@apache.org)

- https://github.com/apache/axis-axis2-java-core/commit/1671a68660df39459bf22f7b00309e2a8e782117 (security@apache.org)

- https://github.com/apache/axis-axis2-java-core/commit/2b98e5a31c793589915711f5e29fb4ffb697de70 (security@apache.org)

- https://github.com/apache/axis-axis2-java-core/commit/94c935d1406bc0875daebd36994595efa2f48ae0 (security@apache.org)

- https://lists.apache.org/thread.html/78poyrrggq8tjoos5tgw508m7oylqjlg (security@apache.org)

- http://www.openwall.com/lists/oss-security/2026/11/06/25 (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- CNA: apache: https://www.cve.org/CVERecord?id=CVE-2026-123770; retrieved 2026-11-09; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123770; retrieved 2026-11-09; source updated 2026-11-09

Revision: 5f1d24b66872c2e8a4c3a179ba1a6d048273387742ebe6462d60697ae73031f4

Canonical: https://y2.dev/cve/CVE-2026-123770

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