CVE-2026-80693: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-h68f-vq23-xjh9
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CVSS 9.3
Published
Advisory Summary

CVE-2026-80693 is a CRITICAL (CVSS 9.3) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80693 at a Glance

CVE Identifier CVE-2026-80693
GHSA Identifier GHSA-h68f-vq23-xjh9
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-80693

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-2026-80693, 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: idpf: bound interrupt-vector register fill to the allocated array idpf_get_reg_intr_vecs() fills the caller-allocated reg_vals[] array from the VIRTCHNL2_OP_ALLOC_VECTORS reply in adapter->req_vec_chunks, bounding its inner loop only by the per-chunk num_vectors. The array is sized separately: idpf_intr_reg_init() allocates kzalloc_objs(struct idpf_vec_regs, total_vecs) from caps.num_allocated_vectors and only checks the returned count after the fill. The sum of per-chunk num_vectors is never reconciled against total_vecs, so a reply with a small num_allocated_vectors but chunks summing higher writes past the end of reg_vals[]. Impact: a control plane (a PF or hypervisor device model) that returns a VIRTCHNL2_OP_ALLOC_VECTORS reply whose per-chunk num_vectors sum exceeds num_allocated_vectors writes struct idpf_vec_regs entries past the end of the reg_vals kmalloc allocation (KASAN slab-out-of-bounds write). Bound the fill loop to the array capacity passed in by the callers, mirroring the sibling idpf_vport_get_q_reg(). The existing num_regs < num_vecs check then rejects an undersized reply without the out-of-bounds write happening first.

References

NVD — CVE-2026-80693 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80693
git.kernel.org/stable/c/41bb874812... WEB
https://git.kernel.org/stable/c/41bb8748124d0d8ee5d8e1eace9dfbc874bc9564
git.kernel.org/stable/c/9f7007ee98... WEB
https://git.kernel.org/stable/c/9f7007ee9858c99aa43101bc8352c672fee85644
git.kernel.org/stable/c/e299b7d133... WEB
https://git.kernel.org/stable/c/e299b7d1334ebec4d43a7bb697d10c12df1aaed3

Frequently Asked Questions

What is CVE-2026-80693?
CVE-2026-80693 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-2026-80693?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80693?
CVE-2026-80693 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80693?
CVE-2026-80693 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80693?
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-h68f-vq23-xjh9",
  "modified" : "2026-10-15T12:30:45Z",
  "published" : "2026-08-28T09:31:49Z",
  "aliases" : [ "CVE-2026-80693" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: bound interrupt-vector register fill to the allocated array\n\nidpf_get_reg_intr_vecs() fills the caller-allocated reg_vals[] array from\nthe VIRTCHNL2_OP_ALLOC_VECTORS reply in adapter->req_vec_chunks, bounding\nits inner loop only by the per-chunk num_vectors. The array is sized\nseparately: idpf_intr_reg_init() allocates\nkzalloc_objs(struct idpf_vec_regs, total_vecs) from\ncaps.num_allocated_vectors and only checks the returned count after the\nfill. The sum of per-chunk num_vectors is never reconciled against\ntotal_vecs, so a reply with a small num_allocated_vectors but chunks\nsumming higher writes past the end of reg_vals[].\n\nImpact: a control plane (a PF or hypervisor device model) that returns a\nVIRTCHNL2_OP_ALLOC_VECTORS reply whose per-chunk num_vectors sum exceeds\nnum_allocated_vectors writes struct idpf_vec_regs entries past the end of\nthe reg_vals kmalloc allocation (KASAN slab-out-of-bounds write).\n\nBound the fill loop to the array capacity passed in by the callers,\nmirroring the sibling idpf_vport_get_q_reg(). The existing\nnum_regs < num_vecs check then rejects an undersized reply without the\nout-of-bounds write happening first.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80693"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/41bb8748124d0d8ee5d8e1eace9dfbc874bc9564"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9f7007ee9858c99aa43101bc8352c672fee85644"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e299b7d1334ebec4d43a7bb697d10c12df1aaed3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-28T08:16:54Z"
  }
}