What is CVE-2026-123029?

CVE-2026-123029 is a high-severity vulnerability in Wowza Streaming Engine, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-11-05.

How severe is CVE-2026-123029?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Wowza Streaming Engine

CVE-2026-123029

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.

Vulnerability class: XXE (XML External Entity)

Published 2026-11-05.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wowza Streaming Engine

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

www.wowza.com/docs/xxe-allows-reading-local-files (vendor-advisory)

Frequently asked questions

What is CVE-2026-123029?: CVE-2026-123029 is a high-severity vulnerability in Wowza Streaming Engine, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-11-05.
How severe is CVE-2026-123029?: High severity. CVSS v3 base score is 7.5 out of 10.