CVE-2026-78242
Received Received - Intake

Sensitive Information Logged in Apache APISIX

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: Apache Software Foundation

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.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-78242
EUVD
EUVD-2026-90763

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apache apisix 3.18.0
apache apisix to 3.18.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-532 The product writes sensitive information to a log file.

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Executive Summary

This vulnerability involves sensitive information being inserted into log files in Apache APISIX. Specifically, unmasked header values may be written to the log sink when a certain response structure is present.

Detection Guidance

To detect this vulnerability, check Apache APISIX logs for unmasked header values in responses. Look for logs containing sensitive data that should be masked. Upgrade to version 3.18.0 or later to resolve the issue.

Impact Analysis

The vulnerability could expose sensitive data in logs, potentially leading to unauthorized access or misuse of that information. Attackers might exploit this to retrieve confidential details if logs are accessed improperly.

Compliance Impact

This vulnerability may violate compliance requirements such as GDPR or HIPAA, which mandate protection of sensitive data. Unauthorized exposure of such data in logs could result in legal penalties or breaches of regulatory standards.

Mitigation Strategies

Upgrade Apache APISIX to version 3.18.0 or later to fix the vulnerability. Check logs for unmasked header values in responses that match the affected structure.

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