Missing Authorization in Apache Answer - CVE-2026-71563
Published: October 22, 2026
Vulnerability identifier: #VU157272
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-71563
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access answer content associated with hidden, deleted, or pending-review questions.
The vulnerability exists due to missing authorization in the MCP answer retrieval tool when retrieving answers associated with non-public questions. A remote user can use a global API key to retrieve these answers to disclose content that should not be publicly accessible.
Affected software
Apache Answer
How to mitigate CVE-2026-71563
Install security update from vendor's website.
Apache Answer - update to 2.0.3