SB2026050583 - Allocation of Resources Without Limits or Throttling in XWiki platform

Description

This security bulletin contains information about 1 vulnerability.

1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2025-66473)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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 APIs when handling requests for large numbers of items. A remote attacker can send a request for an excessive number of items to cause a denial of service.

On large wikis, exploitation can lead to slowness or out-of-memory conditions.

Remediation

Install update from vendor's website.

References

• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cc84-q3v3-mhgf
• https://github.com/xwiki/xwiki-platform/commit/e3c47745195fb445b054537be86f5c01ee69558b