CVE-2026-49232: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-9vvr-6hrm-363j
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CWE-755
Published
Advisory Summary

CVE-2026-49232 is a HIGH security vulnerability vulnerability (CWE-755: Improper Handling of Exceptional Conditions) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not handle or incorrectly handles an exceptional condition.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-49232 at a Glance

CVE Identifier CVE-2026-49232
GHSA Identifier GHSA-9vvr-6hrm-363j
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-755: Improper Handling of Exceptional Conditions
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-49232

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-2026-49232, 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-755: Improper Handling of Exceptional Conditions, where the product does not handle or incorrectly handles an exceptional condition. 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

Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server. This only affects users that make their HTTP or RTR server available to untrusted networks.

References

NVD — CVE-2026-49232 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49232
www.nlnetlabs.nl/downloads/routinato... WEB
https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-49232.txt

Frequently Asked Questions

What is CVE-2026-49232?
CVE-2026-49232 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-755: Improper Handling of Exceptional Conditions.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-49232?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-49232?
CVE-2026-49232 is classified under CWE-755: Improper Handling of Exceptional Conditions (The product does not handle or incorrectly handles an exceptional condition.).
How can I check Maven dependencies for CVE-2026-49232?
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-9vvr-6hrm-363j",
  "modified" : "2026-06-08T15:33:00Z",
  "published" : "2026-06-08T15:33:00Z",
  "aliases" : [ "CVE-2026-49232" ],
  "details" : "Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server.\n\nThis only affects users that make their HTTP or RTR server available to untrusted networks.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/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-2026-49232"
  }, {
    "type" : "WEB",
    "url" : "https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-49232.txt"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-755" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-08T15:16:47Z"
  }
}