CVE-2026-89843: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-x3rh-x4gx-m2j8
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Advisory Summary

CVE-2026-89843 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-2026-89843 at a Glance

CVE Identifier CVE-2026-89843
GHSA Identifier GHSA-x3rh-x4gx-m2j8
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-2026-89843

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-2026-89843, 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: scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak Several bsg handlers stage their request/reply in an uninitialized 256-byte on-stack buffer (uint8_t bsg[DMA_POOL_SIZE]) and fill it via sg_copy_to_buffer(), which only copies as many bytes as the user-supplied request payload. When the request is shorter than the structure, the remainder of the buffer is left holding stale stack data. qla2x00_read_fru_status() and qla2x00_read_i2c() then copy the full structure back to the reply payload with sg_copy_from_buffer(), leaking the uninitialized stack bytes to user space. The write/update paths do not copy the buffer back, but can feed uninitialized fields to the device. Zero the stack buffer at declaration in all five handlers, mirroring the heap kzalloc() approach, so short requests can no longer expose stale memory.

References

NVD — CVE-2026-89843 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89843
git.kernel.org/stable/c/1c820d0900... WEB
https://git.kernel.org/stable/c/1c820d0900e4aacd5020b989159f6b4b2f7d0d6a
git.kernel.org/stable/c/26bc6a2c23... WEB
https://git.kernel.org/stable/c/26bc6a2c235a70bfc9b6de412600208aca820e20
git.kernel.org/stable/c/4fe5790674... WEB
https://git.kernel.org/stable/c/4fe5790674097897a1af1367d1e384f7e5a62fb7
git.kernel.org/stable/c/5ab32dff91... WEB
https://git.kernel.org/stable/c/5ab32dff910291b5e6bf6223f8a4003536c1800a
git.kernel.org/stable/c/708c0ec1e0... WEB
https://git.kernel.org/stable/c/708c0ec1e09c52fee24b74ce9398bf3f8d1c83fd
git.kernel.org/stable/c/7881faf862... WEB
https://git.kernel.org/stable/c/7881faf862ee301ecfe3adc0725bd2fa0021cd95
git.kernel.org/stable/c/947c6bfcf7... WEB
https://git.kernel.org/stable/c/947c6bfcf7f5ec924995bec43e3108b98c75b44e
git.kernel.org/stable/c/b93d3bb3af... WEB
https://git.kernel.org/stable/c/b93d3bb3afe1b44489927de1eb4e66e8536a5935

Frequently Asked Questions

What is CVE-2026-89843?
CVE-2026-89843 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-2026-89843?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89843?
CVE-2026-89843 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89843?
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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  "id" : "GHSA-x3rh-x4gx-m2j8",
  "modified" : "2026-09-16T12:30:38Z",
  "published" : "2026-09-16T12:30:38Z",
  "aliases" : [ "CVE-2026-89843" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak\n\nSeveral bsg handlers stage their request/reply in an uninitialized 256-byte\non-stack buffer (uint8_t bsg[DMA_POOL_SIZE]) and fill it via\nsg_copy_to_buffer(), which only copies as many bytes as the user-supplied\nrequest payload. When the request is shorter than the structure, the\nremainder of the buffer is left holding stale stack data.\n\nqla2x00_read_fru_status() and qla2x00_read_i2c() then copy the full\nstructure back to the reply payload with sg_copy_from_buffer(), leaking the\nuninitialized stack bytes to user space. The write/update paths do not copy\nthe buffer back, but can feed uninitialized fields to the device.\n\nZero the stack buffer at declaration in all five handlers, mirroring the\nheap kzalloc() approach, so short requests can no longer expose stale\nmemory.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
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  "database_specific" : {
    "cwe_ids" : [ ],
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