CVE-2026-123029
Received Received - Intake

XML External Entity Processing in Wowza Streaming Engine

Publication date: 2026-11-05

Last updated on: 2026-11-05

Assigner: MITRE

Description
Wowza Streaming Engine before 4.12.2 processes XML external entities, which allows remote attackers to read local files with the privileges of the Wowza Streaming Engine process.

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Meta Information

Published
2026-11-05
Last Modified
2026-11-05
Generated
2026-11-05
AI Q&A
2026-11-05
EPSS Evaluated
N/A
NVD
CVE-2026-123029
EUVD
EUVD-2026-117386

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Wowza Streaming Engine 0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-611 The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

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Executive Summary

CVE-2026-123029 is an XML External Entity (XXE) vulnerability in Wowza Streaming Engine versions before 4.12.2. It allows remote attackers to read local files on the server by exploiting improper XML input handling. The vulnerability enables malicious actors to access sensitive system files through XXE processing.

Detection Guidance

To detect this XXE vulnerability in Wowza Streaming Engine, monitor for unusual XML parsing errors or file access patterns. Check server logs for requests containing XML payloads with external entity references. Use network traffic analysis tools to inspect XML requests for DOCTYPE declarations or entity references.

Impact Analysis

This vulnerability can lead to unauthorized data exposure, allowing attackers to read confidential files on the affected system. It may compromise sensitive information stored on the server, potentially leading to data breaches or further attacks if exploited.

Mitigation Strategies

Immediately upgrade Wowza Streaming Engine to version 4.12.2 or later to patch the XXE vulnerability. Disable XML external entity processing in the application configuration if an upgrade is not immediately possible. Restrict network access to the server to minimize exposure.

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