What’s Vulnerable › Vulnerabilities

CVE-2026-48912: Apache Answer: Improper authorization in avatar update cleanup allows authenticated users to delete arbitrary uploaded files by URL

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-05 · updated 2026-10-24
• Weakness: CWE-639

Description

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.

Affected products

• Apache Software Foundation Apache Answer: before 2.0.2 — fixed in 2.0.2

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Answer 2.0.2. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/b9jnttmspd9kp4vgbvb32dcqb4201flq
• http://www.openwall.com/lists/oss-security/2026/08/05/11

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