CVE-2026-53241: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-jcg9-m46h-g922
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CVSS 5.5
Published
Advisory Summary

CVE-2026-53241 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53241 at a Glance

CVE Identifier CVE-2026-53241
GHSA Identifier GHSA-jcg9-m46h-g922
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
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-2026-53241

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-2026-53241, 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 General Security Weakness. 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: ALSA: seq: dummy: fix UMP event stack overread The dummy sequencer port forwards events by copying an incoming struct snd_seq_event into a stack temporary, rewriting source and destination, and dispatching the temporary to subscribers. That legacy event storage is smaller than struct snd_seq_ump_event. When a UMP event reaches the dummy client, the copy leaves the UMP flag set but only provides legacy-sized stack storage. The subscriber delivery path then uses snd_seq_event_packet_size() and copies a UMP-sized packet from that stack object, reading past the end of the temporary. Use the existing union __snd_seq_event storage and copy the packet size reported for the incoming event before rewriting the common routing fields. This preserves the full UMP packet for UMP events while keeping legacy event handling unchanged.

References

NVD — CVE-2026-53241 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53241
git.kernel.org/stable/c/2b5ff4db5d... WEB
https://git.kernel.org/stable/c/2b5ff4db5d7aa5b981d966df02e687f79ad7b311
git.kernel.org/stable/c/6671a46144... WEB
https://git.kernel.org/stable/c/6671a46144f880c5a167930ebb14c12f3d059fe9
git.kernel.org/stable/c/6676b60634... WEB
https://git.kernel.org/stable/c/6676b6063440561db600494049ce7ffb695c8cc4
git.kernel.org/stable/c/a7ef78a2c5... WEB
https://git.kernel.org/stable/c/a7ef78a2c536242ccb7a4429da01580b2409bb24

Frequently Asked Questions

What is CVE-2026-53241?
CVE-2026-53241 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53241?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53241?
CVE-2026-53241 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-2026-53241?
CVE-2026-53241 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-53241?
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-jcg9-m46h-g922",
  "modified" : "2026-07-08T00:37:52Z",
  "published" : "2026-06-25T09:31:22Z",
  "aliases" : [ "CVE-2026-53241" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: seq: dummy: fix UMP event stack overread\n\nThe dummy sequencer port forwards events by copying an incoming\nstruct snd_seq_event into a stack temporary, rewriting source and\ndestination, and dispatching the temporary to subscribers. That legacy\nevent storage is smaller than struct snd_seq_ump_event.\n\nWhen a UMP event reaches the dummy client, the copy leaves the UMP flag\nset but only provides legacy-sized stack storage. The subscriber\ndelivery path then uses snd_seq_event_packet_size() and copies a\nUMP-sized packet from that stack object, reading past the end of the\ntemporary.\n\nUse the existing union __snd_seq_event storage and copy the packet size\nreported for the incoming event before rewriting the common routing\nfields. This preserves the full UMP packet for UMP events while keeping\nlegacy event handling unchanged.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53241"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2b5ff4db5d7aa5b981d966df02e687f79ad7b311"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6671a46144f880c5a167930ebb14c12f3d059fe9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6676b6063440561db600494049ce7ffb695c8cc4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a7ef78a2c536242ccb7a4429da01580b2409bb24"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-25T09:16:42Z"
  }
}