CVE-2026-52936: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-9hmp-j3gc-jm6j
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CVSS 5.5
Published
Advisory Summary

CVE-2026-52936 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-2026-52936 at a Glance

CVE Identifier CVE-2026-52936
GHSA Identifier GHSA-9hmp-j3gc-jm6j
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-2026-52936

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-2026-52936, 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: crypto: jitterentropy - replace long-held spinlock with mutex jent_kcapi_random() serializes the shared jitterentropy state, but it currently holds a spinlock across the jent_read_entropy() call. That path performs expensive jitter collection and SHA3 conditioning, so parallel readers can trigger stalls as contending waiters spin for the same lock. To prevent non-preemptible lock hold, replace rng->jent_lock with a mutex so contended readers sleep instead of spinning on a shared lock held across expensive entropy generation.

References

NVD — CVE-2026-52936 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52936
git.kernel.org/stable/c/01d798e9fe... WEB
https://git.kernel.org/stable/c/01d798e9feb30212952d4e992801ba6bd6a82351
git.kernel.org/stable/c/18216b8ab6... WEB
https://git.kernel.org/stable/c/18216b8ab6904753eaf31baf453cb02ecd202ba4
git.kernel.org/stable/c/4c03e6eb98... WEB
https://git.kernel.org/stable/c/4c03e6eb98443dc4d6d422a9780034a5b75376b4
git.kernel.org/stable/c/ec427dc528... WEB
https://git.kernel.org/stable/c/ec427dc5286da1ed08f2d510e2147a7581b0cb02
git.kernel.org/stable/c/ff734dbd9e... WEB
https://git.kernel.org/stable/c/ff734dbd9e2432601a6dcd167cfb0bf8a36d1880

Frequently Asked Questions

What is CVE-2026-52936?
CVE-2026-52936 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-2026-52936?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52936?
CVE-2026-52936 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-2026-52936?
CVE-2026-52936 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52936?
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-9hmp-j3gc-jm6j",
  "modified" : "2026-07-08T21:30:22Z",
  "published" : "2026-06-24T09:30:48Z",
  "aliases" : [ "CVE-2026-52936" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: jitterentropy - replace long-held spinlock with mutex\n\njent_kcapi_random() serializes the shared jitterentropy state, but it\ncurrently holds a spinlock across the jent_read_entropy() call. That\npath performs expensive jitter collection and SHA3 conditioning, so\nparallel readers can trigger stalls as contending waiters spin for\nthe same lock.\n\nTo prevent non-preemptible lock hold, replace rng->jent_lock with a\nmutex so contended readers sleep instead of spinning on a shared lock\nheld across expensive entropy generation.",
  "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-2026-52936"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/01d798e9feb30212952d4e992801ba6bd6a82351"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/18216b8ab6904753eaf31baf453cb02ecd202ba4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4c03e6eb98443dc4d6d422a9780034a5b75376b4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ec427dc5286da1ed08f2d510e2147a7581b0cb02"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ff734dbd9e2432601a6dcd167cfb0bf8a36d1880"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T08:16:23Z"
  }
}