CVE-2026-98236: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-f277-f268-9h2q
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Advisory Summary

CVE-2026-98236 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98236 at a Glance

CVE Identifier CVE-2026-98236
GHSA Identifier GHSA-f277-f268-9h2q
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-98236

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-2026-98236, 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: wwan: mhi_wwan_mbim: check skb_copy_bits() return value mhi_mbim_rx() ignores the return value of skb_copy_bits() when it copies each datagram out of the NTB. The datagram offset and length come from the DPE, which is only checked to lie within the NTB itself, so a modem can point a datagram outside the received skb. The copy then fails and the freshly allocated skbn is passed to netif_rx() with its uninitialized contents still in place, leaking kernel heap memory into the network stack. Free the skb and account an error when the copy fails. Verified in a QEMU guest with a fault injector pointing a DPE outside the received NTB: the copy fails, and the unpatched driver hands the uninitialized skbn to the network stack (observed as "unknown protocol" on bytes that were never written). With this check the failed datagram is dropped and counted as an rx error. Changes in v2: factor the free-and-count sequence out into mhi_mbim_rx_drop(), shared with the unknown-protocol path, as suggested by Loic Poulain.

References

NVD — CVE-2026-98236 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98236
git.kernel.org/stable/c/02eba5f36d... WEB
https://git.kernel.org/stable/c/02eba5f36d20283f144f75d47f0354a85e4f78f0
git.kernel.org/stable/c/298659c367... WEB
https://git.kernel.org/stable/c/298659c3677bf622afa9d77549cb4a967f9541e9
git.kernel.org/stable/c/31550d5855... WEB
https://git.kernel.org/stable/c/31550d585589fde1ae95bf7f7a8188b2d2fdf1c7
git.kernel.org/stable/c/350fd3125e... WEB
https://git.kernel.org/stable/c/350fd3125ee26b5243935fd9e2b4d162ffba430a
git.kernel.org/stable/c/650af68435... WEB
https://git.kernel.org/stable/c/650af68435eaee783824457d2ef78cc5c03c1e88
git.kernel.org/stable/c/7e98216e9d... WEB
https://git.kernel.org/stable/c/7e98216e9da08b79e07a514d2a4f7646f8c9ccb9
git.kernel.org/stable/c/dd136f1fdd... WEB
https://git.kernel.org/stable/c/dd136f1fdd1059f3bc25ede3a8def8f0ee151ce7

Frequently Asked Questions

What is CVE-2026-98236?
CVE-2026-98236 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-2026-98236?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98236?
CVE-2026-98236 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98236?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-f277-f268-9h2q",
  "modified" : "2026-10-06T09:31:32Z",
  "published" : "2026-10-06T09:31:31Z",
  "aliases" : [ "CVE-2026-98236" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: mhi_wwan_mbim: check skb_copy_bits() return value\n\nmhi_mbim_rx() ignores the return value of skb_copy_bits() when it\ncopies each datagram out of the NTB.  The datagram offset and length\ncome from the DPE, which is only checked to lie within the NTB\nitself, so a modem can point a datagram outside the received skb.\nThe copy then fails and the freshly allocated skbn is passed to\nnetif_rx() with its uninitialized contents still in place, leaking\nkernel heap memory into the network stack.\n\nFree the skb and account an error when the copy fails.\n\n\nVerified in a QEMU guest with a fault injector pointing a DPE\noutside the received NTB: the copy fails, and the unpatched driver\nhands the uninitialized skbn to the network stack (observed as\n\"unknown protocol\" on bytes that were never written).  With this\ncheck the failed datagram is dropped and counted as an rx error.\n\nChanges in v2: factor the free-and-count sequence out into\nmhi_mbim_rx_drop(), shared with the unknown-protocol path, as\nsuggested by Loic Poulain.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98236"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/02eba5f36d20283f144f75d47f0354a85e4f78f0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/298659c3677bf622afa9d77549cb4a967f9541e9"
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  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-06T09:18:11Z"
  }
}