CVE-2026-53261: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-q96w-jfjr-xww5
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CVSS 5.5
CWE-401
Published
Advisory Summary

CVE-2026-53261 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-401: Missing Release of Memory after Effective Lifetime) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53261 at a Glance

CVE Identifier CVE-2026-53261
GHSA Identifier GHSA-q96w-jfjr-xww5
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-401: Missing Release of Memory after Effective Lifetime
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-2026-53261

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-2026-53261, 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-401: Missing Release of Memory after Effective Lifetime, where the product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse. 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: devlink: Release nested relation on devlink free devlink relation state is normally released from devl_unregister(), which calls devlink_rel_put(). This misses devlink instances that get a nested relation before registration and then fail probe before devl_register() is reached. That flow can happen for SFs. The child devlink gets linked to its parent before registration, then a later probe error calls devlink_free() directly. Since the instance was never registered, devl_unregister() is not called and devlink->rel is leaked. Release any pending relation from devlink_free() as well. The registered path is unchanged because devl_unregister() already clears devlink->rel before devlink_free() runs.

References

NVD — CVE-2026-53261 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53261
git.kernel.org/stable/c/11324d52b0... WEB
https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689
git.kernel.org/stable/c/3522b21fd7... WEB
https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190
git.kernel.org/stable/c/927f96861f... WEB
https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3
git.kernel.org/stable/c/a913728688... WEB
https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754

Frequently Asked Questions

What is CVE-2026-53261?
CVE-2026-53261 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-401: Missing Release of Memory after Effective Lifetime.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53261?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53261?
CVE-2026-53261 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-2026-53261?
CVE-2026-53261 is classified under CWE-401: Missing Release of Memory after Effective Lifetime (The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.).
How can I check Maven dependencies for CVE-2026-53261?
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-q96w-jfjr-xww5",
  "modified" : "2026-07-08T15:31:48Z",
  "published" : "2026-06-25T09:31:23Z",
  "aliases" : [ "CVE-2026-53261" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndevlink: Release nested relation on devlink free\n\ndevlink relation state is normally released from devl_unregister(), which\ncalls devlink_rel_put(). This misses devlink instances that get a nested\nrelation before registration and then fail probe before devl_register() is\nreached.\n\nThat flow can happen for SFs. The child devlink gets linked to its\nparent before registration, then a later probe error calls devlink_free()\ndirectly. Since the instance was never registered, devl_unregister() is not\ncalled and devlink->rel is leaked.\n\nRelease any pending relation from devlink_free() as well. The registered\npath is unchanged because devl_unregister() already clears devlink->rel\nbefore devlink_free() runs.",
  "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-2026-53261"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-401" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-25T09:16:44Z"
  }
}