CVE-2026-90910

Apache Answer: Reaction API authorization bypass for restricted content

State
Published
Severity
9.8 Critical
Published
Oct 19, 2026
Updated
Oct 19, 2026
Reserved
Sep 14, 2026

Read the record on cve.org

Description

Missing authentication for critical function vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.2.

The reaction API did not enforce content visibility controls, allowing unauthorized users to read reaction metadata from restricted content or add and remove their own reactions.

Users are recommended to upgrade to version 2.0.3, which fixes the issue.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

  • CWE-306 Missing authentication for critical function

Affected Products

ProductVersions
Apache AnswerApache Software Foundation
  • 2.0.2 and earlierAffected

References

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