CVE-2026-80873: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hw7g-293v-4f3g
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Advisory Summary

CVE-2026-80873 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-2026-80873 at a Glance

CVE Identifier CVE-2026-80873
GHSA Identifier GHSA-hw7g-293v-4f3g
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-2026-80873

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-2026-80873, 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: KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions but not for SError. enter_exception64() does not write ESR_ELx for any exception type, so the constructed syndrome is dropped. A guest L2 hypervisor taking a nested SError observes stale ESR_EL2. This affects both kvm_inject_nested_serror() and the EASE path in kvm_inject_nested_sea(). Write ESR_EL2 for except_type_serror, matching except_type_sync.

References

NVD — CVE-2026-80873 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80873
git.kernel.org/stable/c/09f35145f3... WEB
https://git.kernel.org/stable/c/09f35145f3a4aacea4d9b914ad895bf5af8fc4ae
git.kernel.org/stable/c/29227821e2... WEB
https://git.kernel.org/stable/c/29227821e2320ff6a174c91742b4ce221fe8d563
git.kernel.org/stable/c/e2cb1f4578... WEB
https://git.kernel.org/stable/c/e2cb1f4578625e71f461d5c1ce70984193389cbb

Frequently Asked Questions

What is CVE-2026-80873?
CVE-2026-80873 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-2026-80873?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80873?
CVE-2026-80873 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80873?
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-hw7g-293v-4f3g",
  "modified" : "2026-09-04T18:31:31Z",
  "published" : "2026-09-04T18:31:31Z",
  "aliases" : [ "CVE-2026-80873" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions\n\nkvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions\nbut not for SError. enter_exception64() does not write ESR_ELx for any\nexception type, so the constructed syndrome is dropped. A guest L2\nhypervisor taking a nested SError observes stale ESR_EL2.\n\nThis affects both kvm_inject_nested_serror() and the EASE path in\nkvm_inject_nested_sea().\n\nWrite ESR_EL2 for except_type_serror, matching except_type_sync.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80873"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/09f35145f3a4aacea4d9b914ad895bf5af8fc4ae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/29227821e2320ff6a174c91742b4ce221fe8d563"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e2cb1f4578625e71f461d5c1ce70984193389cbb"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T17:16:59Z"
  }
}