CVE-2026-74750: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-2495-48wf-cqx2
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CVSS 7.5
Published
Advisory Summary

CVE-2026-74750 is a HIGH (CVSS 7.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74750 at a Glance

CVE Identifier CVE-2026-74750
GHSA Identifier GHSA-2495-48wf-cqx2
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
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-2026-74750

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-2026-74750, 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: ovpn: defer key slot crypto freeing to workqueue Key slots are released through a kref and the existing release path frees the AEAD transforms from an RCU callback. That is not safe for all crypto implementations: crypto_free_aead can sleep, for example when an async or hardware implementation has teardown work to complete. Use queue_rcu_work for key-slot release. This keeps the RCU grace period needed by lockless key-slot readers, but runs the actual crypto teardown from workqueue context where sleeping is allowed. Once the rcu_work callback runs, pre-existing RCU readers are gone, and the final kref put already proves that no transform user remains, so the worker can release the AEAD transforms and free the slot directly. The previous patch drains ovpn_wq during module exit, so queued key-slot teardown work cannot outlive module text.

References

NVD — CVE-2026-74750 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74750
git.kernel.org/stable/c/0f77ed5ee9... WEB
https://git.kernel.org/stable/c/0f77ed5ee91946ea63e29f2e0ff9dc9e722d8da3
git.kernel.org/stable/c/2da3dfa1dd... WEB
https://git.kernel.org/stable/c/2da3dfa1ddfe55a065f484750c83660e3bd4ac00
git.kernel.org/stable/c/5cea365559... WEB
https://git.kernel.org/stable/c/5cea365559449f2149ab724d33d406e3ec4c00c9

Frequently Asked Questions

What is CVE-2026-74750?
CVE-2026-74750 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-2026-74750?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74750?
CVE-2026-74750 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-2026-74750?
CVE-2026-74750 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74750?
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-2495-48wf-cqx2",
  "modified" : "2026-10-15T12:30:44Z",
  "published" : "2026-08-27T06:31:31Z",
  "aliases" : [ "CVE-2026-74750" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\novpn: defer key slot crypto freeing to workqueue\n\nKey slots are released through a kref and the existing release path\nfrees the AEAD transforms from an RCU callback. That is not safe for all\ncrypto implementations: crypto_free_aead can sleep, for example when an\nasync or hardware implementation has teardown work to complete.\n\nUse queue_rcu_work for key-slot release. This keeps the RCU grace period\nneeded by lockless key-slot readers, but runs the actual crypto teardown\nfrom workqueue context where sleeping is allowed. Once the rcu_work\ncallback runs, pre-existing RCU readers are gone, and the final kref put\nalready proves that no transform user remains, so the worker can release\nthe AEAD transforms and free the slot directly.\n\nThe previous patch drains ovpn_wq during module exit, so queued key-slot\nteardown work cannot outlive module text.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74750"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0f77ed5ee91946ea63e29f2e0ff9dc9e722d8da3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2da3dfa1ddfe55a065f484750c83660e3bd4ac00"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5cea365559449f2149ab724d33d406e3ec4c00c9"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-26T15:16:54Z"
  }
}