CVE-2026-40104 PUBLISHED

XWiki's REST APIs can list all pages/spaces, leading to unavailability

Assigner: GitHub_M
Reserved: 09.04.2026 Published: 15.04.2026 Updated: 15.04.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 6.9

Product Status

Vendor xwiki
Product org.xwiki.platform:xwiki-platform-oldcore
Versions
  • Version >= 1.8-rc-1, < 16.10.16 is affected
  • Version >= 17.0.0-rc-1, < 17.4.8 is affected
  • Version >= 17.5.0-rc-1, < 17.10.1 is affected
Vendor xwiki
Product org.xwiki.platform:xwiki-platform-legacy-oldcore
Versions
  • Version >= 1.8-rc-1, < 16.10.16 is affected
  • Version >= 17.0.0-rc-1, < 17.4.8 is affected
  • Version >= 17.5.0-rc-1, < 17.10.1 is affected

References

Problem Types

  • CWE-770: Allocation of Resources Without Limits or Throttling CWE