CVE-2026-31676: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-cpfq-5p4h-49pp
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CVSS 7.5
CWE-362
Published
Advisory Summary

CVE-2026-31676 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-31676 at a Glance

CVE Identifier CVE-2026-31676
GHSA Identifier GHSA-cpfq-5p4h-49pp
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

Attack Vector Network (AV:N)
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-2026-31676

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-2026-31676, 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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

In the Linux kernel, the following vulnerability has been resolved: rxrpc: only handle RESPONSE during service challenge Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.

References

NVD — CVE-2026-31676 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31676
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/03fd2ef73c... WEB
https://git.kernel.org/stable/c/03fd2ef73cb4ffd0af100a95b634af54f474414e
git.kernel.org/stable/c/0afdfd4941... WEB
https://git.kernel.org/stable/c/0afdfd4941c1b60a1f5c361760daa970edca60cd
git.kernel.org/stable/c/29b44d904d... WEB
https://git.kernel.org/stable/c/29b44d904dceb832be880def08b8cb17a0aba91c
git.kernel.org/stable/c/6c3a0fbdaf... WEB
https://git.kernel.org/stable/c/6c3a0fbdafef8316e34ae22333e317a341e737cd
git.kernel.org/stable/c/a1a8efde03... WEB
https://git.kernel.org/stable/c/a1a8efde03a40b6c658d580e96644d9b9a2a0d3a
git.kernel.org/stable/c/a6bcf8010a... WEB
https://git.kernel.org/stable/c/a6bcf8010af093fe04f7100562e9542ab7882585
git.kernel.org/stable/c/c43ffdcfdb... WEB
https://git.kernel.org/stable/c/c43ffdcfdbb5567b1f143556df8a04b4eeea041c
git.kernel.org/stable/c/d0035e634d... WEB
https://git.kernel.org/stable/c/d0035e634dae83237ab7f5681eb52b2f65d0ceb8

Frequently Asked Questions

What is CVE-2026-31676?
CVE-2026-31676 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-31676?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-31676?
CVE-2026-31676 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-31676?
CVE-2026-31676 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check Maven dependencies for CVE-2026-31676?
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 
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  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: only handle RESPONSE during service challenge\n\nOnly process RESPONSE packets while the service connection is still in\nRXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before\nrunning response verification and security initialization, then use a local\nsecured flag to decide whether to queue the secured-connection work after\nthe state transition. This keeps duplicate or late RESPONSE packets from\nre-running the setup path and removes the unlocked post-transition state\ntest.",
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