CVE-2026-78242: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6wpw-9w4j-xv6c
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CWE-532
Published
Advisory Summary

CVE-2026-78242 is a MODERATE security vulnerability vulnerability (CWE-532: Insertion of Sensitive Information into Log File) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product writes sensitive information to a log file.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-78242 at a Glance

CVE Identifier CVE-2026-78242
GHSA Identifier GHSA-6wpw-9w4j-xv6c
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-532: Insertion of Sensitive Information into Log File
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-78242

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-78242, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-532: Insertion of Sensitive Information into Log File, where the product writes sensitive information to a log file. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

References

NVD — CVE-2026-78242 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78242
lists.apache.org/thread.html/qxzsyw1... WEB
https://lists.apache.org/thread.html/qxzsyw1pbgxg4sqkc4t2g8h4w2q0mvsn
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/10/01/2

Frequently Asked Questions

What is CVE-2026-78242?
CVE-2026-78242 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-532: Insertion of Sensitive Information into Log File.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-78242?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-78242?
CVE-2026-78242 is classified under CWE-532: Insertion of Sensitive Information into Log File (The product writes sensitive information to a log file.).
How can I check Maven dependencies for CVE-2026-78242?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6wpw-9w4j-xv6c",
  "modified" : "2026-10-01T15:30:39Z",
  "published" : "2026-10-01T12:31:19Z",
  "aliases" : [ "CVE-2026-78242" ],
  "details" : "Insertion of sensitive information into log file vulnerability in Apache APISIX.\n\n\n\nThis vulnerability can cause the unmasked header value to be written to the log sink under a certain response structure. \n\n\n\nThis issue affects Apache APISIX: 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-78242"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/qxzsyw1pbgxg4sqkc4t2g8h4w2q0mvsn"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/10/01/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-532" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-01T11:17:27Z"
  }
}