CVE-2026-63975: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g36p-q7h2-h3pp
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CVSS 8.8
CWE-667 CWE-416
Published
Advisory Summary

CVE-2026-63975 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-667: Improper Locking) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-63975 at a Glance

CVE Identifier CVE-2026-63975
GHSA Identifier GHSA-g36p-q7h2-h3pp
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-667: Improper Locking
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-63975

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-2026-63975, 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-667: Improper Locking, where the product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors. 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: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2cap_chan_del may invalidate the tmp cursor created by list_for_each_entry_safe and in fact it is the wrong procedure as the chan->dcid may be assigned previously it really needs to be disconnected. Calling l2cap_chan_clone directly may still lead to l2cap_chan_del so instead schedule l2cap_chan_timeout with delay 0 to close the channel asynchronously.

References

NVD — CVE-2026-63975 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63975
git.kernel.org/stable/c/291eec1041... WEB
https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b
git.kernel.org/stable/c/3c8eaa91eb... WEB
https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00
git.kernel.org/stable/c/41c2713b20... WEB
https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479
git.kernel.org/stable/c/41e29548b5... WEB
https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa
git.kernel.org/stable/c/6319b38fe6... WEB
https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642
git.kernel.org/stable/c/d153b8898c... WEB
https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5
git.kernel.org/stable/c/e6833e737a... WEB
https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6
git.kernel.org/stable/c/ecfed1e0d8... WEB
https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48

Frequently Asked Questions

What is CVE-2026-63975?
CVE-2026-63975 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-667: Improper Locking.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-63975?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-63975?
CVE-2026-63975 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-63975?
CVE-2026-63975 is classified under CWE-667: Improper Locking (The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.).
How can I check Maven dependencies for CVE-2026-63975?
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 
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  "id" : "GHSA-g36p-q7h2-h3pp",
  "modified" : "2026-07-20T15:31:53Z",
  "published" : "2026-07-19T18:31:48Z",
  "aliases" : [ "CVE-2026-63975" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp\n\nIf dcid is received for an already-assigned destination CID the spec\nrequires that both channels to be discarded, but calling l2cap_chan_del\nmay invalidate the tmp cursor created by list_for_each_entry_safe and\nin fact it is the wrong procedure as the chan->dcid may be assigned\npreviously it really needs to be disconnected.\n\nCalling l2cap_chan_clone directly may still lead to l2cap_chan_del so\ninstead schedule l2cap_chan_timeout with delay 0 to close the channel\nasynchronously.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
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    "url" : "https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479"
  }, {
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    "url" : "https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416", "CWE-667" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:16Z"
  }
}