CVE-2026-20630: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-3ww4-528c-xcv7
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CVSS 5.5
CWE-277
Published
Advisory Summary

CVE-2026-20630 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-277: Insecure Inherited Permissions) affecting Software libraries in the Maven ecosystem. The weakness occurs when a product defines a set of insecure permissions that are inherited by objects that are created by the program.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-20630 at a Glance

CVE Identifier CVE-2026-20630
GHSA Identifier GHSA-3ww4-528c-xcv7
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-277: Insecure Inherited Permissions
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:H/I:N/A:N).

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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-20630

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-2026-20630, 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-277: Insecure Inherited Permissions, where a product defines a set of insecure permissions that are inherited by objects that are created by the program. 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

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.3. An app may be able to access protected user data.

References

NVD — CVE-2026-20630 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20630
support.apple.com/en-us/126348 WEB
https://support.apple.com/en-us/126348
support.apple.com/en-us/126349 WEB
https://support.apple.com/en-us/126349
support.apple.com/en-us/126350 WEB
https://support.apple.com/en-us/126350

Frequently Asked Questions

What is CVE-2026-20630?
CVE-2026-20630 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-277: Insecure Inherited Permissions.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-20630?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-20630?
CVE-2026-20630 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:H/I:N/A:N.
What CWE is associated with CVE-2026-20630?
CVE-2026-20630 is classified under CWE-277: Insecure Inherited Permissions (A product defines a set of insecure permissions that are inherited by objects that are created by the program.).
How can I check Maven dependencies for CVE-2026-20630?
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-3ww4-528c-xcv7",
  "modified" : "2026-08-21T03:31:22Z",
  "published" : "2026-02-12T00:31:04Z",
  "aliases" : [ "CVE-2026-20630" ],
  "details" : "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.3. An app may be able to access protected user data.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-20630"
  }, {
    "type" : "WEB",
    "url" : "https://support.apple.com/en-us/126348"
  }, {
    "type" : "WEB",
    "url" : "https://support.apple.com/en-us/126349"
  }, {
    "type" : "WEB",
    "url" : "https://support.apple.com/en-us/126350"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-277" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-02-11T23:16:06Z"
  }
}