SB2026042377 - Overly permissive cross-domain whitelist in strapi



SB2026042377 - Overly permissive cross-domain whitelist in strapi

Published: April 23, 2026

Security Bulletin ID SB2026042377
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Overly permissive cross-domain whitelist (CVE-ID: CVE-2025-53092)

CWE-ID: CWE-942 - Overly Permissive Cross-domain Whitelist

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


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to permissive cross-domain security policy with untrusted domains in the CORS handling of @strapi/core when handling cross-origin requests. A remote attacker can host an attacker-controlled origin and send credentialed requests to disclose sensitive information.

Default installations reflect the Origin header in the Access-Control-Allow-Origin response header and allow credentials in cross-origin responses.


Remediation

Install update from vendor's website.