CVE-2026-78242

Medium

Description

Insertion of sensitive information into log file vulnerability in Apache APISIX. This vulnerability can cause the unmasked header value to be written to the log sink under a certain response structure. This issue affects Apache APISIX: 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

SeverityMedium

CVSS5.7

Exploit probability—

Product

Apache APISIX

PublishedOct 1, 2026

First seenOct 1, 2026

Weakness typeCWE-532CWE-532

How to fix

Vendor advisories

lists.apache.org/thread.html/qxzsyw1pbgxg4sqkc4t2g8h4w2q0mvsn

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache APISIX	3.17.0	—

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