CVE-2026-53265: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-257g-7vrp-j9f8
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CVSS 7.8
CWE-362
Published
Advisory Summary

CVE-2026-53265 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53265 at a Glance

CVE Identifier CVE-2026-53265
GHSA Identifier GHSA-257g-7vrp-j9f8
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-53265

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-2026-53265, 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de ("dm cache policy smq: fix missing locks in invalidating cache blocks") added mq->lock around the destructive part of smq_invalidate_mapping(), but left the e->allocated check outside the critical section. That leaves a check-then-act race. Two concurrent invalidators can both observe e->allocated as true before either of them takes mq->lock. The first invalidator that acquires the lock removes the entry from the queues and hash table and then calls free_entry(), which clears e->allocated and puts the entry back on the free list. The second invalidator can then acquire mq->lock and continue with the stale result of the unlocked check. This can corrupt the SMQ queues or hash table by deleting an entry that is no longer on those structures. It can also hit the allocation check in free_entry() when the same entry is freed again. Move the allocation check under mq->lock so the predicate and the destructive operations are serialized by the same lock.

References

NVD — CVE-2026-53265 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53265
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/03ffe1112e... WEB
https://git.kernel.org/stable/c/03ffe1112ed88bb3a9bd0b971549bf4d64bfc59a
git.kernel.org/stable/c/13da856c86... WEB
https://git.kernel.org/stable/c/13da856c86fb8c2ccab95034fd77da1bb2c2a17c
git.kernel.org/stable/c/42ff6774ec... WEB
https://git.kernel.org/stable/c/42ff6774ecd9d7f70d599cb71ff64373a1da4948
git.kernel.org/stable/c/b489256155... WEB
https://git.kernel.org/stable/c/b4892561552d671bd8c4da5ebb70e9fbb1ec446e
git.kernel.org/stable/c/c242c7af2a... WEB
https://git.kernel.org/stable/c/c242c7af2aecf0b538b8623bdb86b8b441da38d9
git.kernel.org/stable/c/c57570fba2... WEB
https://git.kernel.org/stable/c/c57570fba24016ec25ec046ab44db39143fb7a64
git.kernel.org/stable/c/d3f0a606b9... WEB
https://git.kernel.org/stable/c/d3f0a606b9f278ece8a0df626ded9c4044071235
git.kernel.org/stable/c/d886945fcb... WEB
https://git.kernel.org/stable/c/d886945fcb0f8c9dc6b39928d7a96c95c587346c

Frequently Asked Questions

What is CVE-2026-53265?
CVE-2026-53265 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53265?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53265?
CVE-2026-53265 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-53265?
CVE-2026-53265 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check Maven dependencies for CVE-2026-53265?
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-257g-7vrp-j9f8",
  "modified" : "2026-10-15T03:36:18Z",
  "published" : "2026-06-25T09:31:23Z",
  "aliases" : [ "CVE-2026-53265" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndm cache policy smq: check allocation under invalidate lock\n\ncommit 2d1f7b65f5de (\"dm cache policy smq: fix missing locks in\ninvalidating cache blocks\") added mq->lock around the destructive part of\nsmq_invalidate_mapping(), but left the e->allocated check outside the\ncritical section.\n\nThat leaves a check-then-act race. Two concurrent invalidators can both\nobserve e->allocated as true before either of them takes mq->lock. The\nfirst invalidator that acquires the lock removes the entry from the\nqueues and hash table and then calls free_entry(), which clears\ne->allocated and puts the entry back on the free list. The second\ninvalidator can then acquire mq->lock and continue with the stale result\nof the unlocked check.\n\nThis can corrupt the SMQ queues or hash table by deleting an entry that\nis no longer on those structures. It can also hit the allocation check in\nfree_entry() when the same entry is freed again.\n\nMove the allocation check under mq->lock so the predicate and the\ndestructive operations are serialized by the same lock.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53265"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/03ffe1112ed88bb3a9bd0b971549bf4d64bfc59a"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b4892561552d671bd8c4da5ebb70e9fbb1ec446e"
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/d3f0a606b9f278ece8a0df626ded9c4044071235"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d886945fcb0f8c9dc6b39928d7a96c95c587346c"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-25T09:16:44Z"
  }
}