https://seclists.org/oss-sec/2026/q4/1: CVE-2026-78242: Apache APISIX: data-mask may fail to dact quest headers in logger output

Published Oct 1, 2026
·
Updated

Affected Software

1 affected component
Apache APISIX=3.17.0

Frequently Asked Questions

1

Which deployments are affected?

Apache APISIX version 3.17.0 is affected. Version 3.18.0 fixes the issue.

2

What conditions are required for sensitive headers to be exposed?

The issue occurs when a particular response structure causes the data-mask behavior to fail, allowing an unmasked request header value to be written to the log sink. Exploitation requires local access and low privileges, according to the provided CVSS vector.

3

What is the recommended remediation?

Upgrade Apache APISIX to version 3.18.0. The provided advisory identifies this version as containing the fix.

Company

Resources

Contact

SecAlerts Pty Ltd.
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info@secalerts.co
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