Vulnerability/
https://seclists.org/oss-sec/2026/q4/209

https://seclists.org/oss-sec/2026/q4/209: CVE-2026-90910: Apache Answer: action API authorization bypass for stricted content

Q: Which deployments are exposed?

Apache Answer deployments running version 2.0.2 or earlier are affected. The exposure concerns instances that use restricted content and make the reaction API available.

Q: What could an unauthorized user do?

An unauthorized user could read reaction metadata associated with restricted content. They could also add or remove their own reactions on that content.

Q: What is the recommended remediation?

Upgrade Apache Answer to version 2.0.3, which fixes the issue.

Q: How can I determine whether my instance needs remediation?

Check the deployed Apache Answer version. Instances through 2.0.2 should be upgraded to 2.0.3.

Published Oct 16, 2026

Updated

Affected Software

1 affected component

Apache Answer<=2.0.2

Frequently Asked Questions

Which deployments are exposed?

Apache Answer deployments running version 2.0.2 or earlier are affected. The exposure concerns instances that use restricted content and make the reaction API available.

What could an unauthorized user do?

An unauthorized user could read reaction metadata associated with restricted content. They could also add or remove their own reactions on that content.

What is the recommended remediation?

Upgrade Apache Answer to version 2.0.3, which fixes the issue.

How can I determine whether my instance needs remediation?

Check the deployed Apache Answer version. Instances through 2.0.2 should be upgraded to 2.0.3.

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info@secalerts.co

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