CVE-2026-13442: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-668j-2f6w-gqwr
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CVSS 7.1
CWE-520
Published
Advisory Summary

CVE-2026-13442 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-520: .NET Misconfiguration: Use of Impersonation) affecting Software libraries in the Maven ecosystem. The weakness occurs when allowing a .net application to run at potentially escalated levels of access to the underlying operating and file systems can be dangerous and result in various forms of attacks.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-13442 at a Glance

CVE Identifier CVE-2026-13442
GHSA Identifier GHSA-668j-2f6w-gqwr
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-520: .NET Misconfiguration: Use of Impersonation
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-13442

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-2026-13442, 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-520: .NET Misconfiguration: Use of Impersonation, where allowing a .net application to run at potentially escalated levels of access to the underlying operating and file systems can be dangerous and result in various forms of attacks. 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

IBM Langflow OSS 1.0.0 through 1.10.1 can allow an attacker to reuse another user's FAISS namespace to access owner-only vector content and influence later query results. This causes cross-user information disclosure and limited integrity impact through persistent poisoning of returned results.

References

NVD — CVE-2026-13442 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13442
www.ibm.com/support/pages/node/... WEB
https://www.ibm.com/support/pages/node/7279988

Frequently Asked Questions

What is CVE-2026-13442?
CVE-2026-13442 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-520: .NET Misconfiguration: Use of Impersonation.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-13442?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-13442?
CVE-2026-13442 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2026-13442?
CVE-2026-13442 is classified under CWE-520: .NET Misconfiguration: Use of Impersonation (Allowing a .NET application to run at potentially escalated levels of access to the underlying operating and file systems can be dangerous and result in various forms of attacks.).
How can I check Maven dependencies for CVE-2026-13442?
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-668j-2f6w-gqwr",
  "modified" : "2026-07-28T21:31:34Z",
  "published" : "2026-07-28T21:31:34Z",
  "aliases" : [ "CVE-2026-13442" ],
  "details" : "IBM Langflow OSS 1.0.0 through 1.10.1 can allow an attacker to reuse another user's FAISS namespace to access owner-only vector content and influence later query results. This causes cross-user information disclosure and limited integrity impact through persistent poisoning of returned results.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-13442"
  }, {
    "type" : "WEB",
    "url" : "https://www.ibm.com/support/pages/node/7279988"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-520" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-28T21:17:25Z"
  }
}