GitHub Advisoryadvisory · Maven
GHSA-mrqg-xmgm-rc5g XWiki's REST APIs can list all pages/spaces, leading to unavailability
MEDIUM
Official page ↗
- Aliases
- CVE-2026-40104
- Ecosystem
- Maven
- Packages
- org.xwiki.platform:xwiki-platform-oldcore, org.xwiki.platform:xwiki-platform-legacy-oldcore
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Weaknesses
- CWE-770
- Reviewed
- 2026-04-14
Affected packages
• Maven org.xwiki.platform:xwiki-platform-oldcore: >= 1.8-rc-1, < 16.10.16 → fixed in 16.10.16
• Maven org.xwiki.platform:xwiki-platform-oldcore: >= 17.0.0-rc-1, < 17.4.8 → fixed in 17.4.8
• Maven org.xwiki.platform:xwiki-platform-oldcore: >= 17.5.0-rc-1, < 17.10.1 → fixed in 17.10.1
• Maven org.xwiki.platform:xwiki-platform-legacy-oldcore: >= 1.8-rc-1, < 16.10.16 → fixed in 16.10.16
• Maven org.xwiki.platform:xwiki-platform-legacy-oldcore: >= 17.0.0-rc-1, < 17.4.8 → fixed in 17.4.8
• Maven org.xwiki.platform:xwiki-platform-legacy-oldcore: >= 17.5.0-rc-1, < 17.10.1 → fixed in 17.10.1
Description
Impact
REST API endpoints like `/xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties` list all available pages as part of the metadata for database list properties, which can exhaust available resources on large wikis.
Patches
This problem has been patched by applying the configured query limit also to the available values for database list properties in XWiki 16.10.16, 17.4.8 and 17.10.1.
Workarounds
We're not aware of any workarounds apart from upgrading the affected modules.
Related
Alias · CVE (1)
- CVE-2026-40104 XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. vulnerability
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mrqg-xmgm-rc5g web
- https://nvd.nist.gov/vuln/detail/CVE-2026-40104 advisory
- https://github.com/xwiki/xwiki-platform/commit/47b568c4753a6e682b14be1ca581bdd3b25d45a7 web
- https://github.com/xwiki/xwiki-platform package
- https://jira.xwiki.org/browse/XWIKI-23550 web