CVE-2026-101959: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-vqw7-gfmm-3mrr
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CVSS 6.5
CWE-688
Published
Advisory Summary

CVE-2026-101959 is a HIGH (CVSS 6.5) security vulnerability vulnerability (CWE-688: Function Call With Incorrect Variable or Reference as Argument) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product calls a function, procedure, or routine, but the caller specifies the wrong variable or reference as one of the arguments, which may lead to undefined behavior and resultant weaknesses.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-101959 at a Glance

CVE Identifier CVE-2026-101959
GHSA Identifier GHSA-vqw7-gfmm-3mrr
Severity HIGH
CVSS v3.1 Base Score 6.5
CWE Classification CWE-688: Function Call With Incorrect Variable or Reference as Argument
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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

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

How to Fix CVE-2026-101959

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-2026-101959, 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-688: Function Call With Incorrect Variable or Reference as Argument, where the product calls a function, procedure, or routine, but the caller specifies the wrong variable or reference as one of the arguments, which may lead to undefined behavior and resultant weaknesses. 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

A Function Call With Incorrect Variable or Reference as Argument vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause an rpd crash via specifically malformed LSP-ping.

References

NVD — CVE-2026-101959 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101959
supportportal.juniper.net/jsa112187 WEB
https://supportportal.juniper.net/JSA112187

Frequently Asked Questions

What is CVE-2026-101959?
CVE-2026-101959 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-688: Function Call With Incorrect Variable or Reference as Argument.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-101959?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-101959?
CVE-2026-101959 has a CVSS v3.1 base score of 6.5 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-101959?
CVE-2026-101959 is classified under CWE-688: Function Call With Incorrect Variable or Reference as Argument (The product calls a function, procedure, or routine, but the caller specifies the wrong variable or reference as one of the arguments, which may lead to undefined behavior and resultant weaknesses.).
How can I check Maven dependencies for CVE-2026-101959?
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-vqw7-gfmm-3mrr",
  "modified" : "2026-10-14T18:32:28Z",
  "published" : "2026-10-14T18:32:28Z",
  "aliases" : [ "CVE-2026-101959" ],
  "details" : "A Function Call With Incorrect Variable or Reference as Argument vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause an rpd crash via specifically malformed LSP-ping.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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-2026-101959"
  }, {
    "type" : "WEB",
    "url" : "https://supportportal.juniper.net/JSA112187"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-688" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-14T18:17:11Z"
  }
}