CVE-2026-43169: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vpc5-6pmj-q288
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Advisory Summary

CVE-2026-43169 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-2026-43169 at a Glance

CVE Identifier CVE-2026-43169
GHSA Identifier GHSA-vpc5-6pmj-q288
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-2026-43169

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-2026-43169, 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/buddy: Prevent BUG_ON by validating rounded allocation When DRM_BUDDY_CONTIGUOUS_ALLOCATION is set, the requested size is rounded up to the next power-of-two via roundup_pow_of_two(). Similarly, for non-contiguous allocations with large min_block_size, the size is aligned up via round_up(). Both operations can produce a rounded size that exceeds mm->size, which later triggers BUG_ON(order > mm->max_order). Example scenarios: - 9G CONTIGUOUS allocation on 10G VRAM memory: roundup_pow_of_two(9G) = 16G > 10G - 9G allocation with 8G min_block_size on 10G VRAM memory: round_up(9G, 8G) = 16G > 10G Fix this by checking the rounded size against mm->size. For non-contiguous or range allocations where size > mm->size is invalid, return -EINVAL immediately. For contiguous allocations without range restrictions, allow the request to fall through to the existing __alloc_contig_try_harder() fallback. This ensures invalid user input returns an error or uses the fallback path instead of hitting BUG_ON. v2: (Matt A) - Add Fixes, Cc stable, and Closes tags for context

References

NVD — CVE-2026-43169 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43169
git.kernel.org/stable/c/5488a29596... WEB
https://git.kernel.org/stable/c/5488a29596cdba93a60a79398dc9b69d5bdadf92
git.kernel.org/stable/c/6236c1cd9f... WEB
https://git.kernel.org/stable/c/6236c1cd9fdf433d39ed28b2491ccdfe7ae95061
git.kernel.org/stable/c/d764b8dd42... WEB
https://git.kernel.org/stable/c/d764b8dd420098a4d253b8a5b27568c897edb2cf
git.kernel.org/stable/c/ecb32c60d8... WEB
https://git.kernel.org/stable/c/ecb32c60d8cbed2ee9ce9f343b6aa2f32babc727

Frequently Asked Questions

What is CVE-2026-43169?
CVE-2026-43169 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-2026-43169?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-43169?
CVE-2026-43169 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-43169?
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-vpc5-6pmj-q288",
  "modified" : "2026-05-06T12:30:31Z",
  "published" : "2026-05-06T12:30:31Z",
  "aliases" : [ "CVE-2026-43169" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/buddy: Prevent BUG_ON by validating rounded allocation\n\nWhen DRM_BUDDY_CONTIGUOUS_ALLOCATION is set, the requested size is\nrounded up to the next power-of-two via roundup_pow_of_two().\nSimilarly, for non-contiguous allocations with large min_block_size,\nthe size is aligned up via round_up(). Both operations can produce a\nrounded size that exceeds mm->size, which later triggers\nBUG_ON(order > mm->max_order).\n\nExample scenarios:\n- 9G CONTIGUOUS allocation on 10G VRAM memory:\n  roundup_pow_of_two(9G) = 16G > 10G\n- 9G allocation with 8G min_block_size on 10G VRAM memory:\n  round_up(9G, 8G) = 16G > 10G\n\nFix this by checking the rounded size against mm->size. For\nnon-contiguous or range allocations where size > mm->size is invalid,\nreturn -EINVAL immediately. For contiguous allocations without range\nrestrictions, allow the request to fall through to the existing\n__alloc_contig_try_harder() fallback.\n\nThis ensures invalid user input returns an error or uses the fallback\npath instead of hitting BUG_ON.\n\nv2: (Matt A)\n- Add Fixes, Cc stable, and Closes tags for context",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-43169"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5488a29596cdba93a60a79398dc9b69d5bdadf92"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6236c1cd9fdf433d39ed28b2491ccdfe7ae95061"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d764b8dd420098a4d253b8a5b27568c897edb2cf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ecb32c60d8cbed2ee9ce9f343b6aa2f32babc727"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-06T12:16:35Z"
  }
}