CVE-2026-46115: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-3588-2x8w-w62r
Share
CVSS 9.8
CWE-20
Published
Advisory Summary

CVE-2026-46115 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46115 at a Glance

CVE Identifier CVE-2026-46115
GHSA Identifier GHSA-3588-2x8w-w62r
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-20: Improper Input Validation
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

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

How to Fix CVE-2026-46115

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-2026-46115, 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 CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. 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: block: add pgmap check to biovec_phys_mergeable biovec_phys_mergeable() is used by the request merge, DMA mapping, and integrity merge paths to decide if two physically contiguous bvec segments can be coalesced into one. It currently has no check for whether the segments belong to different dev_pagemaps. When zone device memory is registered in multiple chunks, each chunk gets its own dev_pagemap. A single bio can legitimately contain bvecs from different pgmaps -- iov_iter_extract_bvecs() breaks at pgmap boundaries but the outer loop in bio_iov_iter_get_pages() continues filling the same bio. If such bvecs are physically contiguous, biovec_phys_mergeable() will coalesce them, making it impossible to recover the correct pgmap for the merged segment via page_pgmap(). Add a zone_device_pages_have_same_pgmap() check to prevent merging bvec segments that span different pgmaps.

References

NVD — CVE-2026-46115 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46115
git.kernel.org/stable/c/13920e4b7b... WEB
https://git.kernel.org/stable/c/13920e4b7b784b40cf4519ff1f0f3e513476a499
git.kernel.org/stable/c/3d2ecbd444... WEB
https://git.kernel.org/stable/c/3d2ecbd444b01d6500671d1a582b7393943cf539
git.kernel.org/stable/c/a7f3aa8c9d... WEB
https://git.kernel.org/stable/c/a7f3aa8c9df3905fe820ae36b67ba56b81587574
git.kernel.org/stable/c/f17d521075... WEB
https://git.kernel.org/stable/c/f17d521075325b8afc42d1baa1c28a5e9aca111f
git.kernel.org/stable/c/f632dab4b8... WEB
https://git.kernel.org/stable/c/f632dab4b841554cd6416058c61886d7db176581

Frequently Asked Questions

What is CVE-2026-46115?
CVE-2026-46115 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-20: Improper Input Validation.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46115?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46115?
CVE-2026-46115 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-46115?
CVE-2026-46115 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Maven dependencies for CVE-2026-46115?
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-3588-2x8w-w62r",
  "modified" : "2026-05-30T12:30:25Z",
  "published" : "2026-05-28T12:30:29Z",
  "aliases" : [ "CVE-2026-46115" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: add pgmap check to biovec_phys_mergeable\n\nbiovec_phys_mergeable() is used by the request merge, DMA mapping,\nand integrity merge paths to decide if two physically contiguous\nbvec segments can be coalesced into one. It currently has no check\nfor whether the segments belong to different dev_pagemaps.\n\nWhen zone device memory is registered in multiple chunks, each chunk\ngets its own dev_pagemap. A single bio can legitimately contain\nbvecs from different pgmaps -- iov_iter_extract_bvecs() breaks at\npgmap boundaries but the outer loop in bio_iov_iter_get_pages()\ncontinues filling the same bio. If such bvecs are physically\ncontiguous, biovec_phys_mergeable() will coalesce them, making it\nimpossible to recover the correct pgmap for the merged segment\nvia page_pgmap().\n\nAdd a zone_device_pages_have_same_pgmap() check to prevent merging\nbvec segments that span different pgmaps.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-46115"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/13920e4b7b784b40cf4519ff1f0f3e513476a499"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3d2ecbd444b01d6500671d1a582b7393943cf539"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a7f3aa8c9df3905fe820ae36b67ba56b81587574"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f17d521075325b8afc42d1baa1c28a5e9aca111f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f632dab4b841554cd6416058c61886d7db176581"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-28T10:16:26Z"
  }
}