Medium severity · published Oct 19, 2026
CVE-2026-71563
Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Missing Authorization vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.2.
An authorization flaw in the MCP answer retrieval tool allows holders of a global API key to access answer content associated with hidden, deleted, or pending-review questions.
Users are recommended to upgrade to version 2.0.3, which fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Answer · Apache Software Foundation
through 2.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-71563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-71563
lists.apache.org
https://lists.apache.org/thread/msodd7g2r6xdn9wpkpdp04m9g1jb2xtl
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/10/16/27
More from Apache Answer
9.8
CVE-2026-90910
Apache Answer: Reaction API authorization bypass for restricted content
9.1
CVE-2026-60053
Apache Answer: Residual Administrative API Key Access After Role or Account Revocation
8.1
CVE-2026-64943
Apache Answer: API keys logged in plaintext during authentication
7.5
CVE-2026-60023
Apache Answer: Unauthorized disclosure of deleted or pending answer content
7.5
CVE-2026-48911
Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow