CVE-2026-52944: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-v762-vr2v-9263
Share
CVSS 5.5
Published
Advisory Summary

CVE-2026-52944 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-2026-52944 at a Glance

CVE Identifier CVE-2026-52944
GHSA Identifier GHSA-v762-vr2v-9263
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-2026-52944

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-2026-52944, 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: ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTL_SET_SPARSE FSCTL_SET_SPARSE in fsctl_set_sparse() modifies the file's sparse attribute and saves it through xattr without any permission checks. This exposes two issues: 1) A client on a read-only share can change the sparse attribute on files it opened, even though the share is read-only. Other FSCTL write operations already check test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE), but FSCTL_SET_SPARSE does not. 2) Even on writable shares, clients without FILE_WRITE_DATA or FILE_WRITE_ATTRIBUTES access should not modify the sparse attribute. Similar handle-level checks exist in other functions but are missing here. Add both share-level writable check and per-handle access check. Use goto out on error to avoid leaking file references.

References

NVD — CVE-2026-52944 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52944
git.kernel.org/stable/c/3127a88452... WEB
https://git.kernel.org/stable/c/3127a884525dc8ca4def73254bfcd3ccef0bf812
git.kernel.org/stable/c/3a9a0a1c38... WEB
https://git.kernel.org/stable/c/3a9a0a1c38ef90788f5d7c4b29903c8b220f744a
git.kernel.org/stable/c/aef151bcfa... WEB
https://git.kernel.org/stable/c/aef151bcfa494bfe983669de2726734b534adb73
git.kernel.org/stable/c/c5ab11263e... WEB
https://git.kernel.org/stable/c/c5ab11263e3c89aa7989afc5374ef7743e092fd0
git.kernel.org/stable/c/cc57232cae... WEB
https://git.kernel.org/stable/c/cc57232cae23c0df91b4a59d0f519141ce9b5b02
git.kernel.org/stable/c/de9eb0b44f... WEB
https://git.kernel.org/stable/c/de9eb0b44fa9123170e6245b49638e0e453c10f8
git.kernel.org/stable/c/ef664475c1... WEB
https://git.kernel.org/stable/c/ef664475c1bf1a27d45dae6848ca9c9c4d86853f

Frequently Asked Questions

What is CVE-2026-52944?
CVE-2026-52944 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-2026-52944?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52944?
CVE-2026-52944 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-2026-52944?
CVE-2026-52944 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52944?
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-v762-vr2v-9263",
  "modified" : "2026-09-14T12:31:30Z",
  "published" : "2026-06-24T12:30:31Z",
  "aliases" : [ "CVE-2026-52944" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix FSCTL permission bypass by adding a permission check for FSCTL_SET_SPARSE\n\nFSCTL_SET_SPARSE in fsctl_set_sparse() modifies the file's sparse\nattribute and saves it through xattr without any permission checks.\n\nThis exposes two issues:\n\n1) A client on a read-only share can change the sparse attribute\n   on files it opened, even though the share is read-only.\n   Other FSCTL write operations already check\n   test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE),\n   but FSCTL_SET_SPARSE does not.\n\n2) Even on writable shares, clients without FILE_WRITE_DATA or\n   FILE_WRITE_ATTRIBUTES access should not modify the sparse\n   attribute. Similar handle-level checks exist in other functions\n   but are missing here.\n\nAdd both share-level writable check and per-handle access check.\nUse goto out on error to avoid leaking file references.",
  "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-2026-52944"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3127a884525dc8ca4def73254bfcd3ccef0bf812"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3a9a0a1c38ef90788f5d7c4b29903c8b220f744a"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/de9eb0b44fa9123170e6245b49638e0e453c10f8"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ef664475c1bf1a27d45dae6848ca9c9c4d86853f"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T10:17:19Z"
  }
}