CVE-2026-71563
Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
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.
- Record
CVE-2026-71563- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
EUVDEUVD-2026-104158
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.
- Record
EUVD-2026-104158- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-99v2-ggw9-c6mv
Missing Authorization vulnerability in Apache Answer. This issue affects Apache Answer:...
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.
- Record
GHSA-99v2-ggw9-c6mv- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-71563- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-71563 is a medium vulnerability (CVSS 4.3) in Apache Software Foundation Answer, published October 19, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 13th percentile. No source names a fixed version.