CVE-2026-71563 Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
Attackers with global API keys can access content from hidden, deleted, or pending-review questions in Apache Answer.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71563?
CVE-2026-71563 is a medium-severity missing authorization vulnerability in Apache Answer, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-71563?
How do I fix CVE-2026-71563?
No fix has been published for CVE-2026-71563 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-71563 being exploited?
There is no known exploitation of CVE-2026-71563 in the wild and no public exploit code.
Sources
Also known as GHSA-99v2-ggw9-c6mv.