CVE-2026-78242

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.

Score

CVSS 4.0 5.7 Medium

Status

Deferred - security@apache.org

Published

2026-10-01

Last modified

2026-10-01

Weaknesses

CWE-532

Affected products

• Apache Apisix (Apache Software Foundation)

References

• https://lists.apache.org/thread.html/qxzsyw1pbgxg4sqkc4t2g8h4w2q0mvsn
• http://www.openwall.com/lists/oss-security/2026/10/01/2