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CVE-2026-34031

Apache Answer: The custom avatar was not properly validated

Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD

6.5CVSS

MEDIUM

Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

EPSS Score

0.0%

Top 94.9%

CISA KEV

Not in KEV

Exploits

No Known Exploits

Remediation

No Fix Available

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

Weaknesses

CWE-434

Affected Products

Apache Answer

Apache Software Foundation

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

3 techniques

Command and Control

Initial Access

Persistence

View detailed technique mapping

References

https://lists.apache.org/thread/rwtxy39t54to9kv3dqtbjsbdpyk4jkd2

lists.apache.org

http://www.openwall.com/lists/oss-security/2026/06/09/4

openwall.com

Timeline

Published

Jun 9, 2026

Last Updated

Jun 9, 2026

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