Inclusion of Sensitive Information in Log Files in Apache APISIX - CVE-2026-78242
Published: October 1, 2026
Vulnerability identifier: #VU153086
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-78242
CWE-ID: CWE-532
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to insertion of sensitive information into log files in the Apache APISIX data-mask functionality when processing requests under a certain response structure. A local user can cause an unmasked request-header value to be written to the log sink to disclose sensitive information.
Affected software
Apache APISIX
How to mitigate CVE-2026-78242
Install security update from vendor's website.
Apache APISIX - update to 3.18.0