Apache Answer 2.0.1 - Authenticated Delete Vulnerability in Avatar-Cleanup
CVE-2026-48912 Published on August 5, 2026
Apache Answer: Improper authorization in avatar update cleanup allows authenticated users to delete arbitrary uploaded files by URL
Improper Input Validation vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.1.
A missing ownership check in the avatar-cleanup logic allows any authenticated user to delete other users' uploaded files by supplying their file URLs.
Users are recommended to upgrade to version 2.0.2, which fixes the issue.
Vulnerability Analysis
CVE-2026-48912 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is an Insecure Direct Object Reference / IDOR Vulnerability?
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CVE-2026-48912 has been classified to as an Insecure Direct Object Reference / IDOR vulnerability or weakness.
Products Associated with CVE-2026-48912
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Affected Versions
Apache Software Foundation Apache Answer:- Before and including 2.0.1 is affected.