CVE-2026-80951: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-j6x8-pq79-v84j
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Advisory Summary

CVE-2026-80951 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-2026-80951 at a Glance

CVE Identifier CVE-2026-80951
GHSA Identifier GHSA-j6x8-pq79-v84j
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-2026-80951

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-2026-80951, 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: i3c: master: svc: bound IBI payload to the requested max_payload_len svc_i3c_master_handle_ibi() reads the IBI payload from the RX FIFO into the IBI slot. The loop is bounded by the hardware FIFO size (SVC_I3C_FIFO_SIZE), not by the slot size. slot->data points into the IBI pool, which i3c_generic_ibi_alloc_pool() sizes at max_payload_len per slot. svc_i3c_master_request_ibi() only rejects a max_payload_len larger than SVC_I3C_FIFO_SIZE, so a driver can request a smaller one. mctp-i3c requests 1. Each readsb() then copies the controller RXCOUNT bytes (up to 31) with no check against the slot size. A device that sends more bytes than the slot holds writes past slot->data, an out-of-bounds write into the IBI pool. Bound the loop by dev->ibi->max_payload_len and clamp each read to the space left in the slot, the same way dw-i3c does. A device can still send more than the requested payload. Flush the leftover bytes from the RX FIFO so they do not leak into the next transfer.

References

NVD — CVE-2026-80951 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80951
git.kernel.org/stable/c/35aa6730b8... WEB
https://git.kernel.org/stable/c/35aa6730b8c5626b879a4e893fe664f59bf07d7f
git.kernel.org/stable/c/5697d77957... WEB
https://git.kernel.org/stable/c/5697d779577e2786ff3348ae9b77020ac0cf0aab
git.kernel.org/stable/c/7c099b0b29... WEB
https://git.kernel.org/stable/c/7c099b0b292a68d0ef558527945dbfb756fbf893
git.kernel.org/stable/c/7cc5ba756b... WEB
https://git.kernel.org/stable/c/7cc5ba756bc1cfffab9cb2695742f9f479dc73f7
git.kernel.org/stable/c/aac3c5aaba... WEB
https://git.kernel.org/stable/c/aac3c5aababc7fb69d5bf5b0cc52d308574e3a8c
git.kernel.org/stable/c/e2bda39d7f... WEB
https://git.kernel.org/stable/c/e2bda39d7f9f285ec803e200b5c1f17143d0b483
git.kernel.org/stable/c/f296a0d590... WEB
https://git.kernel.org/stable/c/f296a0d5907bf88314dfda67245f7f69d1552470

Frequently Asked Questions

What is CVE-2026-80951?
CVE-2026-80951 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-2026-80951?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80951?
CVE-2026-80951 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80951?
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-j6x8-pq79-v84j",
  "modified" : "2026-09-14T15:32:20Z",
  "published" : "2026-09-11T21:31:21Z",
  "aliases" : [ "CVE-2026-80951" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: svc: bound IBI payload to the requested max_payload_len\n\nsvc_i3c_master_handle_ibi() reads the IBI payload from the RX FIFO into\nthe IBI slot. The loop is bounded by the hardware FIFO size\n(SVC_I3C_FIFO_SIZE), not by the slot size.\n\nslot->data points into the IBI pool, which i3c_generic_ibi_alloc_pool()\nsizes at max_payload_len per slot. svc_i3c_master_request_ibi() only\nrejects a max_payload_len larger than SVC_I3C_FIFO_SIZE, so a driver can\nrequest a smaller one. mctp-i3c requests 1. Each readsb() then copies the\ncontroller RXCOUNT bytes (up to 31) with no check against the slot size.\nA device that sends more bytes than the slot holds writes past\nslot->data, an out-of-bounds write into the IBI pool.\n\nBound the loop by dev->ibi->max_payload_len and clamp each read to the\nspace left in the slot, the same way dw-i3c does. A device can still send\nmore than the requested payload. Flush the leftover bytes from the RX FIFO\nso they do not leak into the next transfer.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80951"
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    "type" : "WEB",
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:00Z"
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}