CVE-2026-80645: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-fmq3-pjfg-pm48
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CVSS 8.1
Published
Advisory Summary

CVE-2026-80645 is a HIGH (CVSS 8.1) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80645 at a Glance

CVE Identifier CVE-2026-80645
GHSA Identifier GHSA-fmq3-pjfg-pm48
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

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

How to Fix CVE-2026-80645

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-2026-80645, 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: rapidio/tsi721: prevent a bad dereference in tsi721_db_dpc() With a list_for_each() loop, if we don't find the item we are looking for in the list, then the loop exits with the iterator, which is "dbell" in this loop, pointing to invalid memory. This code uses the "found" variable to determine if we have found the doorbell we are looking for or not. However, the problem that the "found" variable needs to be set to false at the start of each iteration, otherwise after the first correct doorbell, then everything is marked as found. Reset the "found" to false at the start of the iteration and move the variable inside the loop.

References

NVD — CVE-2026-80645 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80645
git.kernel.org/stable/c/070f356ea4... WEB
https://git.kernel.org/stable/c/070f356ea4f419e4e85e4089381f4477f41d969e
git.kernel.org/stable/c/13092966ba... WEB
https://git.kernel.org/stable/c/13092966ba5d8fb214a4efeddc87f9ed0fd2f945
git.kernel.org/stable/c/3b5c66e922... WEB
https://git.kernel.org/stable/c/3b5c66e922aa6a3331915a14520848a5b3beccc7
git.kernel.org/stable/c/81c06ef66c... WEB
https://git.kernel.org/stable/c/81c06ef66c3ab6eeaa72eb790c90ae043cdb3d43
git.kernel.org/stable/c/9e775c3199... WEB
https://git.kernel.org/stable/c/9e775c3199903d7c09a52530042b1198eab705bd
git.kernel.org/stable/c/acd54f42ab... WEB
https://git.kernel.org/stable/c/acd54f42abbbd806464468838dbc04efd203d2be
git.kernel.org/stable/c/dc28a14f3e... WEB
https://git.kernel.org/stable/c/dc28a14f3e4546b2b06098d24177942540581a5f
git.kernel.org/stable/c/fc15e3a30d... WEB
https://git.kernel.org/stable/c/fc15e3a30ddd950f009c76765331783b9af94a87

Frequently Asked Questions

What is CVE-2026-80645?
CVE-2026-80645 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-2026-80645?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80645?
CVE-2026-80645 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2026-80645?
CVE-2026-80645 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80645?
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-fmq3-pjfg-pm48",
  "modified" : "2026-08-29T09:30:26Z",
  "published" : "2026-08-28T09:31:48Z",
  "aliases" : [ "CVE-2026-80645" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nrapidio/tsi721: prevent a bad dereference in tsi721_db_dpc()\n\nWith a list_for_each() loop, if we don't find the item we are looking for\nin the list, then the loop exits with the iterator, which is \"dbell\" in\nthis loop, pointing to invalid memory.\n\nThis code uses the \"found\" variable to determine if we have found the\ndoorbell we are looking for or not.  However, the problem that the \"found\"\nvariable needs to be set to false at the start of each iteration,\notherwise after the first correct doorbell, then everything is marked as\nfound.\n\nReset the \"found\" to false at the start of the iteration and move the\nvariable inside the loop.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
  } ],
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  "references" : [ {
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    "url" : "https://git.kernel.org/stable/c/070f356ea4f419e4e85e4089381f4477f41d969e"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/13092966ba5d8fb214a4efeddc87f9ed0fd2f945"
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/dc28a14f3e4546b2b06098d24177942540581a5f"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fc15e3a30ddd950f009c76765331783b9af94a87"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-28T08:16:49Z"
  }
}