CVE-2026-48912Network attack vectorHinoki check available

Cross-user file deletion via unchecked avatar cleanup

Published Aug 5, 2026 · Updated Aug 5, 2026

Authorization bypass in Apache Answer 2.0.1 and earlier allows remote authenticated users to delete other users' uploaded files. The avatar-update cleanup accepts caller-supplied file URLs and removes the referenced uploads without verifying that the authenticated account owns them. Any ordinary authenticated account can trigger cross-user deletion, while the published record reports no data disclosure or code execution.

CVSS severity6.5
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Apache Answer 2.0.1 and earlier allows remote authenticated users to delete other users' uploaded files. The avatar-update cleanup accepts caller-supplied file URLs and removes the referenced uploads without verifying that the authenticated account owns them. Any ordinary authenticated account can trigger cross-user deletion, while the published record reports no data disclosure or code execution.

The record

CVE
CVE-2026-48912
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
The Apache Software Foundation
Product
Apache Answer
Classifications
CWE-639, T1070.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Answerversion=0 <=2.0.1

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1070.004Indicator Removal: File Deletion

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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