CVE-2026-2379: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-qm38-553v-42w8
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CVSS 5.9
CWE-672
Published
Advisory Summary

CVE-2026-2379 is a HIGH (CVSS 5.9) security vulnerability vulnerability (CWE-672: Operation on a Resource after Expiration or Release) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-2379 at a Glance

CVE Identifier CVE-2026-2379
GHSA Identifier GHSA-qm38-553v-42w8
Severity HIGH
CVSS v3.1 Base Score 5.9
CWE Classification CWE-672: Operation on a Resource after Expiration or Release
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.9

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

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

How to Fix CVE-2026-2379

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-2026-2379, 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-672: Operation on a Resource after Expiration or Release, where the product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked. 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

On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases. Physical interface flaps and certain agent restarts can cause IPsec tunnel re-establishment with existing Security Associations, resulting in sequence number mismatches between tunnel endpoints potentially causing unstable communication.

References

NVD — CVE-2026-2379 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2379
Software Security Information SECURITY
https://www.arista.com/en/support/advisories-notices/security-advisory/23419-security-advisory-0134

Frequently Asked Questions

What is CVE-2026-2379?
CVE-2026-2379 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-672: Operation on a Resource after Expiration or Release.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-2379?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-2379?
CVE-2026-2379 has a CVSS v3.1 base score of 5.9 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-2379?
CVE-2026-2379 is classified under CWE-672: Operation on a Resource after Expiration or Release (The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.).
How can I check Maven dependencies for CVE-2026-2379?
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-qm38-553v-42w8",
  "modified" : "2026-06-05T18:31:40Z",
  "published" : "2026-06-05T18:31:40Z",
  "aliases" : [ "CVE-2026-2379" ],
  "details" : "On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases. Physical interface flaps and certain agent restarts can cause IPsec tunnel re-establishment with existing Security Associations, resulting in sequence number mismatches between tunnel endpoints potentially causing unstable communication.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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-2026-2379"
  }, {
    "type" : "WEB",
    "url" : "https://www.arista.com/en/support/advisories-notices/security-advisory/23419-security-advisory-0134"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-672" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-05T18:17:05Z"
  }
}