Vulnerability Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerability in REST API endpoints such as /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties, which list all available pages as part of the metadata for database list properties without applying query limits. On large wikis, this can exhaust available server resources. This issue has been patched in versions 16.10.16, 17.4.8 and 17.10.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xwiki | Xwiki | >= 1.8, < 16.10.16 |
Related Weaknesses (CWE)
References
- https://github.com/xwiki/xwiki-platform/commit/47b568c4753a6e682b14be1ca581bdd3bPatch
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mrqg-xmgm-rc5gVendor Advisory
- https://jira.xwiki.org/browse/XWIKI-23550Vendor AdvisoryIssue Tracking
FAQ
What is CVE-2026-40104?
CVE-2026-40104 is a vulnerability with a CVSS score of 8.2 (HIGH). XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerab...
How severe is CVE-2026-40104?
CVE-2026-40104 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40104?
Check the references section above for vendor advisories and patch information. Affected products include: Xwiki Xwiki.