CVE-2026-52998: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-pphc-92v7-v4w2
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CVSS 7.5
CWE-476
Published
Advisory Summary

CVE-2026-52998 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52998 at a Glance

CVE Identifier CVE-2026-52998
GHSA Identifier GHSA-pphc-92v7-v4w2
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-476: NULL Pointer Dereference
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-2026-52998

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-2026-52998, 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check The nf_osf_ttl() function accessed skb->dev to perform a local interface address lookup without verifying that the device pointer was valid. Additionally, the implementation utilized an in_dev_for_each_ifa_rcu loop to match the packet source address against local interface addresses. It assumed that packets from the same subnet should not see a decrement on the initial TTL. A packet might appear it is from the same subnet but it actually isn't especially in modern environments with containers and virtual switching. Remove the device dereference and interface loop. Replace the logic with a switch statement that evaluates the TTL according to the ttl_check.

References

NVD — CVE-2026-52998 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52998
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-457936.html
git.kernel.org/stable/c/5d05de2f09... WEB
https://git.kernel.org/stable/c/5d05de2f0928d81309a815ecc76d1a3ad72cbc16
git.kernel.org/stable/c/711987ba28... WEB
https://git.kernel.org/stable/c/711987ba281fd806322a7cd244e98e2a81903114
git.kernel.org/stable/c/79b90a9668... WEB
https://git.kernel.org/stable/c/79b90a96688e521771fa6ed3dc7864b76b8df293
git.kernel.org/stable/c/83fc5dd634... WEB
https://git.kernel.org/stable/c/83fc5dd63455a779ea2dd0f7ffee3c920919d80b
git.kernel.org/stable/c/95be653a76... WEB
https://git.kernel.org/stable/c/95be653a76793856ff8b2d8bd82c2943c23f5ca8
git.kernel.org/stable/c/c996a90f30... WEB
https://git.kernel.org/stable/c/c996a90f3071cf43683e5423da31aadbe002b8b4
git.kernel.org/stable/c/edc806f912... WEB
https://git.kernel.org/stable/c/edc806f9122961f0d3819f7c69c14cccde31f277
git.kernel.org/stable/c/f4de0777e4... WEB
https://git.kernel.org/stable/c/f4de0777e4554a7de19c920accde6319dd530782

Frequently Asked Questions

What is CVE-2026-52998?
CVE-2026-52998 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-52998?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52998?
CVE-2026-52998 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-2026-52998?
CVE-2026-52998 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2026-52998?
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-pphc-92v7-v4w2",
  "modified" : "2026-10-15T03:36:11Z",
  "published" : "2026-06-24T18:32:43Z",
  "aliases" : [ "CVE-2026-52998" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_osf: fix potential NULL dereference in ttl check\n\nThe nf_osf_ttl() function accessed skb->dev to perform a local interface\naddress lookup without verifying that the device pointer was valid.\n\nAdditionally, the implementation utilized an in_dev_for_each_ifa_rcu\nloop to match the packet source address against local interface\naddresses. It assumed that packets from the same subnet should not see a\ndecrement on the initial TTL. A packet might appear it is from the same\nsubnet but it actually isn't especially in modern environments with\ncontainers and virtual switching.\n\nRemove the device dereference and interface loop. Replace the logic with\na switch statement that evaluates the TTL according to the ttl_check.",
  "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-2026-52998"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5d05de2f0928d81309a815ecc76d1a3ad72cbc16"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/711987ba281fd806322a7cd244e98e2a81903114"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/83fc5dd63455a779ea2dd0f7ffee3c920919d80b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/95be653a76793856ff8b2d8bd82c2943c23f5ca8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c996a90f3071cf43683e5423da31aadbe002b8b4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/edc806f9122961f0d3819f7c69c14cccde31f277"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f4de0777e4554a7de19c920accde6319dd530782"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T17:17:10Z"
  }
}