Allocation of Resources Without Limits or Throttling in XWiki platform - CVE-2026-40104
Published: May 5, 2026
Vulnerability identifier: #VU129897
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2026-40104
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in REST API endpoints exposing database list properties when handling requests for metadata that list all available pages or spaces. A remote attacker can send a specially crafted request to cause a denial of service.
Exploitation can exhaust available resources on large wikis.
Affected software
XWiki platform
How to mitigate CVE-2026-40104
Install security update from vendor's website.
XWiki platform - addressed in versions 16.10.16, 17.4.8, 17.10.1