CVE-2026-23434: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-f5hq-62qq-fgrw
Share
CVSS 5.5
CWE-362
Published
Advisory Summary

CVE-2026-23434 is a MODERATE (CVSS 5.5) 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-2026-23434 at a Glance

CVE Identifier CVE-2026-23434
GHSA Identifier GHSA-f5hq-62qq-fgrw
Severity MODERATE
CVSS v3.1 Base Score 5.5
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: 5.5

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2026-23434

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-2026-23434, 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: mtd: rawnand: serialize lock/unlock against other NAND operations nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access.

References

NVD — CVE-2026-23434 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23434
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-457936.html
git.kernel.org/stable/c/28ea836cc4... WEB
https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9
git.kernel.org/stable/c/5fd5c078af... WEB
https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04
git.kernel.org/stable/c/a80291e577... WEB
https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d
git.kernel.org/stable/c/bab2bc6e85... WEB
https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95
git.kernel.org/stable/c/ce5229e780... WEB
https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b
git.kernel.org/stable/c/f25446e2c2... WEB
https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d
git.kernel.org/stable/c/f71ce0ae5a... WEB
https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2
git.kernel.org/stable/c/fe4a73c3dd... WEB
https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba

Frequently Asked Questions

What is CVE-2026-23434?
CVE-2026-23434 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-2026-23434?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-23434?
CVE-2026-23434 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-23434?
CVE-2026-23434 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-2026-23434?
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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  "id" : "GHSA-f5hq-62qq-fgrw",
  "modified" : "2026-10-15T03:35:28Z",
  "published" : "2026-04-03T18:31:21Z",
  "aliases" : [ "CVE-2026-23434" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: serialize lock/unlock against other NAND operations\n\nnand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area\nwithout holding the NAND device lock. On controllers that implement\nSET_FEATURES via multiple low-level PIO commands, these can race with\nconcurrent UBI/UBIFS background erase/write operations that hold the\ndevice lock, resulting in cmd_pending conflicts on the NAND controller.\n\nAdd nand_get_device()/nand_release_device() around the lock/unlock\noperations to serialize them against all other NAND controller access.",
  "severity" : [ {
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  }, {
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
  }, {
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
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    "url" : "https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95"
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    "url" : "https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b"
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    "url" : "https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba"
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  "database_specific" : {
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    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-04-03T16:16:24Z"
  }
}