CVE-2026-48912: CWE-639 Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Answer
An improper input validation vulnerability exists in Apache Answer through version 2.0.1. The issue arises from a missing ownership check in the avatar-cleanup logic, allowing any authenticated user to delete files uploaded by other users by supplying their file URLs. The vulnerability is fixed in version 2.0.2.
AI Analysis
Technical Summary
CVE-2026-48912 describes an improper input validation vulnerability in Apache Answer versions up to 2.0.1. Specifically, the avatar-cleanup functionality lacks an ownership verification step, which enables authenticated users to delete files uploaded by others by providing the URLs of those files. This vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key). The issue is resolved in Apache Answer version 2.0.2.
Potential Impact
The vulnerability allows authenticated users to delete files uploaded by other users, impacting the integrity of user-uploaded content. There is no confidentiality or availability impact reported. The CVSS 3.1 base score is 6.5 (medium severity), reflecting the potential for unauthorized modification of data.
Mitigation Recommendations
Users should upgrade Apache Answer to version 2.0.2 or later, where the missing ownership check in the avatar-cleanup logic has been fixed. No other mitigation or temporary workaround is indicated.
CVE-2026-48912: CWE-639 Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Answer
Description
An improper input validation vulnerability exists in Apache Answer through version 2.0.1. The issue arises from a missing ownership check in the avatar-cleanup logic, allowing any authenticated user to delete files uploaded by other users by supplying their file URLs. The vulnerability is fixed in version 2.0.2.
CVSS v3.1
Score 6.5medium
Affected software
pkg:maven/org.apache.answer/apache-answerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48912 describes an improper input validation vulnerability in Apache Answer versions up to 2.0.1. Specifically, the avatar-cleanup functionality lacks an ownership verification step, which enables authenticated users to delete files uploaded by others by providing the URLs of those files. This vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key). The issue is resolved in Apache Answer version 2.0.2.
Potential Impact
The vulnerability allows authenticated users to delete files uploaded by other users, impacting the integrity of user-uploaded content. There is no confidentiality or availability impact reported. The CVSS 3.1 base score is 6.5 (medium severity), reflecting the potential for unauthorized modification of data.
Mitigation Recommendations
Users should upgrade Apache Answer to version 2.0.2 or later, where the missing ownership check in the avatar-cleanup logic has been fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-536r-pphc-ghq8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-48912"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a74cf83bf8831d5391acfc2
Added to database: 08/06/2026, 18:16:35 UTC
Last enriched: 08/06/2026, 18:27:43 UTC
Last updated: 08/07/2026, 02:40:59 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.