CVE-2026-80749: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-4qvv-f8j2-942j
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CVSS 7.1
Published
Advisory Summary

CVE-2026-80749 is a HIGH (CVSS 7.1) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80749 at a Glance

CVE Identifier CVE-2026-80749
GHSA Identifier GHSA-4qvv-f8j2-942j
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.1

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

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

How to Fix CVE-2026-80749

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-2026-80749, 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: drm/connector/hdmi: Fix out of bounds memory read A helper function was copying a given audio infoframe into the connector's copy but using the size of the destination (a generic target, sized to accept many different data blocks) not the source (a very specific type of data block). Thus, it was copying 60 bytes of data from a 28 byte allocation. Fix that by using the source size instead, together with a build bug on the source size actually being smaller than the destination. I hit this running KUnit tests under KASAN (while debugging something else entirely). In the real world, it seems unlikely to cause an actual problem. It is a read not a write so it can't corrupt any memory. However, it could potentially fall off the end of a page and cause an accvio bug.

References

NVD — CVE-2026-80749 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80749
git.kernel.org/stable/c/9ecf8ba763... WEB
https://git.kernel.org/stable/c/9ecf8ba763d0ffe0673538eb4bf7806f20455d19
git.kernel.org/stable/c/d9f7454c18... WEB
https://git.kernel.org/stable/c/d9f7454c185c0c7f0973e11d62ad6c06862c324c
git.kernel.org/stable/c/e5b527804a... WEB
https://git.kernel.org/stable/c/e5b527804a1ea4f70e139179d3062cf5de8c06ab
git.kernel.org/stable/c/f72bb95732... WEB
https://git.kernel.org/stable/c/f72bb95732bc5ca87b50c52c8f087ba501950809

Frequently Asked Questions

What is CVE-2026-80749?
CVE-2026-80749 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-2026-80749?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80749?
CVE-2026-80749 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-80749?
CVE-2026-80749 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80749?
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-4qvv-f8j2-942j",
  "modified" : "2026-09-04T06:31:20Z",
  "published" : "2026-09-03T15:32:15Z",
  "aliases" : [ "CVE-2026-80749" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/connector/hdmi: Fix out of bounds memory read\n\nA helper function was copying a given audio infoframe into the\nconnector's copy but using the size of the destination (a generic\ntarget, sized to accept many different data blocks) not the source (a\nvery specific type of data block). Thus, it was copying 60 bytes of\ndata from a 28 byte allocation.\n\nFix that by using the source size instead, together with a build bug\non the source size actually being smaller than the destination.\n\nI hit this running KUnit tests under KASAN (while debugging something\nelse entirely). In the real world, it seems unlikely to cause an\nactual problem. It is a read not a write so it can't corrupt any\nmemory. However, it could potentially fall off the end of a page and\ncause an accvio bug.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80749"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9ecf8ba763d0ffe0673538eb4bf7806f20455d19"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d9f7454c185c0c7f0973e11d62ad6c06862c324c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e5b527804a1ea4f70e139179d3062cf5de8c06ab"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f72bb95732bc5ca87b50c52c8f087ba501950809"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-03T13:06:14Z"
  }
}