CVE-2026-78242 PUBLISHED

Apache APISIX: data-mask may fail to redact request headers in logger output

Assigner: apache
Reserved: 24.08.2026 Published: 01.10.2026 Updated: 01.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.7

Product Status

Vendor Apache Software Foundation
Product Apache APISIX
Versions Default: unaffected
  • Version 3.17.0 is affected

Credits

  • Jonas Schültke reporter

References

Problem Types

  • CWE-532 Insertion of sensitive information into log file CWE