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CVE-2026-34031

Apache Answer: The custom avatar was not properly validated

Published: Jun 9, 2026Updated: Jul 23, 2026 Sources: CVE List NVDCWE-434
6.5MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 66.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
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
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Weaknesses

CWE-434

Affected Products

apache
oss-project·USaka apache http server, apache httpd
answerOn-premWeb App
Web & CMS Plugins / cms-core
Apache Software Foundation
oss-project·USaka apache foundation
Apache AnswerOn-premWeb App
Web & CMS Plugins / cms-core

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

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

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