CVE-2026-88357: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-hjcq-5876-2cpr
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CVSS 7.5
CWE-1335
Published
Advisory Summary

CVE-2026-88357 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-1335: Incorrect Bitwise Shift of Integer) affecting Software libraries in the Maven ecosystem. The weakness occurs when an integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-88357 at a Glance

CVE Identifier CVE-2026-88357
GHSA Identifier GHSA-hjcq-5876-2cpr
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1335: Incorrect Bitwise Shift of Integer
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2026-88357

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-2026-88357, 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-1335: Incorrect Bitwise Shift of Integer, where an integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result. 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

nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.

References

NVD — CVE-2026-88357 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88357
Software Source Repository REPOSITORY
https://github.com/ntop/nDPI/issues/3213
Software Source Repository REPOSITORY
https://github.com/ntop/nDPI/pull/3231
Security Fix Commit FIX COMMIT
https://github.com/utoni/nDPI/commit/6698f14bf6025394a537fe23f413cf79e9d13594
Security Fix Commit FIX COMMIT
https://github.com/utoni/nDPI/commit/694231bb43ff21f452fbc2b53fcf6cdc9a99f75f
Security Fix Commit FIX COMMIT
https://github.com/utoni/nDPI/commit/6ce1280c52ed52a97332c3fe58fd2b47b867ec6e
Security Fix Commit FIX COMMIT
https://github.com/utoni/nDPI/commit/8fc3b439920021a77165f8aee4f81b25bc88629e

Frequently Asked Questions

What is CVE-2026-88357?
CVE-2026-88357 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1335: Incorrect Bitwise Shift of Integer.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-88357?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-88357?
CVE-2026-88357 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-88357?
CVE-2026-88357 is classified under CWE-1335: Incorrect Bitwise Shift of Integer (An integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result.).
How can I check Maven dependencies for CVE-2026-88357?
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-hjcq-5876-2cpr",
  "modified" : "2026-09-24T18:31:19Z",
  "published" : "2026-09-24T18:31:19Z",
  "aliases" : [ "CVE-2026-88357" ],
  "details" : "nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-88357"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ntop/nDPI/issues/3213"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ntop/nDPI/pull/3231"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/utoni/nDPI/commit/6698f14bf6025394a537fe23f413cf79e9d13594"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/utoni/nDPI/commit/694231bb43ff21f452fbc2b53fcf6cdc9a99f75f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/utoni/nDPI/commit/6ce1280c52ed52a97332c3fe58fd2b47b867ec6e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/utoni/nDPI/commit/8fc3b439920021a77165f8aee4f81b25bc88629e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1335" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:12Z"
  }
}