CVE-2026-46107: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-c6hr-v224-3w2w
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CVSS 7.8
CWE-191 CWE-667
Published
Advisory Summary

CVE-2026-46107 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-191: Integer Underflow (Wrap or Wraparound)) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46107 at a Glance

CVE Identifier CVE-2026-46107
GHSA Identifier GHSA-c6hr-v224-3w2w
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-191: Integer Underflow (Wrap or Wraparound)
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/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 High (I:H)
Availability High (A:H)

How to Fix CVE-2026-46107

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-2026-46107, 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-191: Integer Underflow (Wrap or Wraparound), where the product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. 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: dm-thin: fix metadata refcount underflow There's a bug in dm-thin in the function rebalance_children. If the internal btree node has one entry, the code tries to copy all btree entries from the node's child to the node itself and then decrement the child's reference count. If the child node is shared (it has reference count > 1), we won't free it, so there would be two pointers to each of the grandchildren nodes. But the reference counts of the grandchildren is not increased, thus the reference count doesn't match the number of pointers that point to the grandchildren. This results in "device mapper: space map common: unable to decrement block" errors. Fix this bug by incrementing reference counts on the grandchildren if the btree node is shared.

References

NVD — CVE-2026-46107 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46107
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/09a65adc7d... WEB
https://git.kernel.org/stable/c/09a65adc7d8bbfce06392cb6d375468e2728ead5
git.kernel.org/stable/c/12161e03d3... WEB
https://git.kernel.org/stable/c/12161e03d33afce781f68fa11cc6060538862fad
git.kernel.org/stable/c/323d252a4a... WEB
https://git.kernel.org/stable/c/323d252a4a378834e4fe68298ca61cfc5dd3a460
git.kernel.org/stable/c/5ec0debbcf... WEB
https://git.kernel.org/stable/c/5ec0debbcfd43596e32c1239e993de06a704e04c
git.kernel.org/stable/c/85311a585a... WEB
https://git.kernel.org/stable/c/85311a585a26640760cd0f3349ab9f2905691044
git.kernel.org/stable/c/b719d12cb9... WEB
https://git.kernel.org/stable/c/b719d12cb94df345e9ad2715fd0abe9afcaeb111
git.kernel.org/stable/c/f06f6aeded... WEB
https://git.kernel.org/stable/c/f06f6aededd792a754cd677c02b3d3016d868c2c
git.kernel.org/stable/c/f49b41c9eb... WEB
https://git.kernel.org/stable/c/f49b41c9eb7c6ff00df27cd49cea210abbadd8ad

Frequently Asked Questions

What is CVE-2026-46107?
CVE-2026-46107 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-191: Integer Underflow (Wrap or Wraparound).
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46107?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46107?
CVE-2026-46107 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-46107?
CVE-2026-46107 is classified under CWE-191: Integer Underflow (Wrap or Wraparound) (The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.).
How can I check Maven dependencies for CVE-2026-46107?
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-c6hr-v224-3w2w",
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  "published" : "2026-05-28T12:30:28Z",
  "aliases" : [ "CVE-2026-46107" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-thin: fix metadata refcount underflow\n\nThere's a bug in dm-thin in the function rebalance_children. If the\ninternal btree node has one entry, the code tries to copy all btree\nentries from the node's child to the node itself and then decrement the\nchild's reference count.\n\nIf the child node is shared (it has reference count > 1), we won't free\nit, so there would be two pointers to each of the grandchildren nodes.\nBut the reference counts of the grandchildren is not increased, thus the\nreference count doesn't match the number of pointers that point to the\ngrandchildren. This results in \"device mapper: space map common: unable\nto decrement block\" errors.\n\nFix this bug by incrementing reference counts on the grandchildren if the\nbtree node is shared.",
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    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/09a65adc7d8bbfce06392cb6d375468e2728ead5"
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  "database_specific" : {
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    "severity" : "HIGH",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-28T10:16:26Z"
  }
}