CVE-2026-53245: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-5mw9-5f6m-q724
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CVSS 5.5
Published
Advisory Summary

CVE-2026-53245 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53245 at a Glance

CVE Identifier CVE-2026-53245
GHSA Identifier GHSA-5mw9-5f6m-q724
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
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-2026-53245

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-2026-53245, 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: net/802/mrp: fix vector attribute parsing in mrp_pdu_parse_vecattr In mrp_pdu_parse_vecattr(), vector attribute events are encoded three per byte and valen tracks the number of events left to process. The parser decrements valen after processing the first and second events from each event byte, but not after processing the third one. When valen is exactly a multiple of three, the loop continues after the last valid event and consumes the next byte as a new event byte, applying a spurious event to the MRP applicant state. Additionally, when valen is zero the parser unconditionally consumes attrlen bytes as FirstValue and advances the offset, even though per IEEE 802.1ak a VectorAttribute with only a LeaveAllEvent has valen of zero and no FirstValue or Vector fields. This corrupts the offset for subsequent PDU parsing. Also, when valen exceeds three the loop crosses byte boundaries but the attribute value is not incremented between the last event of one byte and the first event of the next. This causes the first event of the next byte to use the same attribute value as the third event rather than the next consecutive value. Decrement valen after processing the third event, skip FirstValue consumption when valen is zero, and increment the attribute value at the end of each loop iteration.

References

NVD — CVE-2026-53245 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53245
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/36d2597118... WEB
https://git.kernel.org/stable/c/36d259711872e3b2f6cd76a4d270c21931c0f35f
git.kernel.org/stable/c/42446ca0f3... WEB
https://git.kernel.org/stable/c/42446ca0f3570663e87183c065e0b4def52dfba2
git.kernel.org/stable/c/6d6e42e8e1... WEB
https://git.kernel.org/stable/c/6d6e42e8e17f18d61327f8653479c5b5e161ae1d
git.kernel.org/stable/c/6eea6494e5... WEB
https://git.kernel.org/stable/c/6eea6494e542a03cdf755a593b7d74f3f7c260fd
git.kernel.org/stable/c/7561c7fbc6... WEB
https://git.kernel.org/stable/c/7561c7fbc694308da73300f036719e63e42bf0b4
git.kernel.org/stable/c/ae65714d96... WEB
https://git.kernel.org/stable/c/ae65714d96f68bb252eb20085320bdaacab36c00
git.kernel.org/stable/c/cc98717e59... WEB
https://git.kernel.org/stable/c/cc98717e591a963a616fdf15ecf48eefaf45d758
git.kernel.org/stable/c/fd9c3a47c6... WEB
https://git.kernel.org/stable/c/fd9c3a47c670bec6b18f44454cea023f93b5adb3

Frequently Asked Questions

What is CVE-2026-53245?
CVE-2026-53245 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-2026-53245?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53245?
CVE-2026-53245 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-2026-53245?
CVE-2026-53245 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-53245?
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-5mw9-5f6m-q724",
  "modified" : "2026-10-15T03:36:17Z",
  "published" : "2026-06-25T09:31:22Z",
  "aliases" : [ "CVE-2026-53245" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/802/mrp: fix vector attribute parsing in mrp_pdu_parse_vecattr\n\nIn mrp_pdu_parse_vecattr(), vector attribute events are encoded three\nper byte and valen tracks the number of events left to process.\n\nThe parser decrements valen after processing the first and second events\nfrom each event byte, but not after processing the third one. When valen\nis exactly a multiple of three, the loop continues after the last valid\nevent and consumes the next byte as a new event byte, applying a\nspurious event to the MRP applicant state.\n\nAdditionally, when valen is zero the parser unconditionally consumes\nattrlen bytes as FirstValue and advances the offset, even though per\nIEEE 802.1ak a VectorAttribute with only a LeaveAllEvent has valen of\nzero and no FirstValue or Vector fields. This corrupts the offset for\nsubsequent PDU parsing.\n\nAlso, when valen exceeds three the loop crosses byte boundaries but\nthe attribute value is not incremented between the last event of one\nbyte and the first event of the next. This causes the first event of\nthe next byte to use the same attribute value as the third event\nrather than the next consecutive value.\n\nDecrement valen after processing the third event, skip FirstValue\nconsumption when valen is zero, and increment the attribute value at\nthe end of each loop iteration.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
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  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53245"
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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    "url" : "https://git.kernel.org/stable/c/36d259711872e3b2f6cd76a4d270c21931c0f35f"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cc98717e591a963a616fdf15ecf48eefaf45d758"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fd9c3a47c670bec6b18f44454cea023f93b5adb3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-25T09:16:42Z"
  }
}