CVE-2026-90195: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-wm8w-4px2-2hp8
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Advisory Summary

CVE-2026-90195 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-2026-90195 at a Glance

CVE Identifier CVE-2026-90195
GHSA Identifier GHSA-wm8w-4px2-2hp8
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-2026-90195

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-2026-90195, 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: riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args On RV64, the ABI requires sign-extension for signed 1-byte and 2-byte kfunc args. However, the RV64 JIT currently does not perform sign-extension for such kfunc args. Before commit 7ce090afbf72 ("bpf: Infer zext_dst based on static register liveness analysis"), state pruning could potentially omit zero-extension of 32-bit subregisters, which inadvertently masked the above issue by making the args appear as if they had been properly sign-extended. After that commit, the problem is exposed, causing the kfunc_call/kfunc_call_test4 selftest to fail. Fix this by extending the existing sign-extension logic to handle signed 1-byte and 2-byte kfunc args as well.

References

NVD — CVE-2026-90195 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90195
git.kernel.org/stable/c/555fc6f1ca... WEB
https://git.kernel.org/stable/c/555fc6f1caf00ce7005e732b688da26c0dc3c5c5
git.kernel.org/stable/c/71dbd143be... WEB
https://git.kernel.org/stable/c/71dbd143be598954ae103feadd12692aeb0f2f88
git.kernel.org/stable/c/801ae90f8c... WEB
https://git.kernel.org/stable/c/801ae90f8ce099187e6224cec7d72d07a4df0324
git.kernel.org/stable/c/f2aaa62159... WEB
https://git.kernel.org/stable/c/f2aaa621591093cfe8224a25ef2f04a3b1e304b0

Frequently Asked Questions

What is CVE-2026-90195?
CVE-2026-90195 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-2026-90195?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90195?
CVE-2026-90195 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90195?
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-wm8w-4px2-2hp8",
  "modified" : "2026-09-17T18:31:55Z",
  "published" : "2026-09-17T18:31:55Z",
  "aliases" : [ "CVE-2026-90195" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args\n\nOn RV64, the ABI requires sign-extension for signed 1-byte and 2-byte kfunc\nargs. However, the RV64 JIT currently does not perform sign-extension for\nsuch kfunc args.\n\nBefore commit 7ce090afbf72 (\"bpf: Infer zext_dst based on static register\nliveness analysis\"), state pruning could potentially omit zero-extension\nof 32-bit subregisters, which inadvertently masked the above issue by making\nthe args appear as if they had been properly sign-extended. After that\ncommit, the problem is exposed, causing the kfunc_call/kfunc_call_test4\nselftest to fail.\n\nFix this by extending the existing sign-extension logic to handle signed\n1-byte and 2-byte kfunc args as well.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90195"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/555fc6f1caf00ce7005e732b688da26c0dc3c5c5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/71dbd143be598954ae103feadd12692aeb0f2f88"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/801ae90f8ce099187e6224cec7d72d07a4df0324"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f2aaa621591093cfe8224a25ef2f04a3b1e304b0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:14Z"
  }
}