CVE-2026-90910

EUVD-2026-104165
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 49.85%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
apacheanswer
𝑥
≤ 2.0.2
CNA
Common Weakness Enumeration
References
https://lists.apache.org/thread/bhw80mvmnt9206wyqz80rcbwx1znv1p3
http://www.openwall.com/lists/oss-security/2026/10/16/34