CVE-2026-40104
Published:April 15, 2026
Updated:April 23, 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.
Affected Packages
https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-16.10.0 <xwiki-platform-16.10.16Fix Suggestion:
Update to version xwiki-platform-16.10.16https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-17.4.0 <xwiki-platform-17.4.8Fix Suggestion:
Update to version xwiki-platform-17.4.8https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) =xwiki-platform-17.10.0 <xwiki-platform-17.10.1Fix Suggestion:
Update to version xwiki-platform-17.10.1org.xwiki.platform:xwiki-platform-oldcore (JAVA):
Affected version(s) >=17.0.0-rc-1 <17.4.8Fix Suggestion:
Update to version 17.4.8org.xwiki.platform:xwiki-platform-legacy-oldcore (JAVA):
Affected version(s) >=3.2-milestone-2 <16.10.16Fix Suggestion:
Update to version 16.10.16org.xwiki.platform:xwiki-platform-oldcore (JAVA):
Affected version(s) >=17.5.0 <17.10.1Fix Suggestion:
Update to version 17.10.1org.xwiki.platform:xwiki-platform-oldcore (JAVA):
Affected version(s) >=3.1-milestone-1 <16.10.16Fix Suggestion:
Update to version 16.10.16org.xwiki.platform:xwiki-platform-legacy-oldcore (JAVA):
Affected version(s) >=17.5.0 <17.10.1Fix Suggestion:
Update to version 17.10.1org.xwiki.platform:xwiki-platform-legacy-oldcore (JAVA):
Affected version(s) >=17.0.0-rc-1 <17.4.8Fix Suggestion:
Update to version 17.4.8Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
EPSS
Base Score:
0.04
