CVE-2026-46191: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-8j9w-r5cf-prpv
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CVSS 7.1
CWE-125
Published
Advisory Summary

CVE-2026-46191 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46191 at a Glance

CVE Identifier CVE-2026-46191
GHSA Identifier GHSA-8j9w-r5cf-prpv
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-125: Out-of-bounds Read
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-2026-46191

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-2026-46191, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbcon_rotate_font(). The putcs implementations for the rotated buffer will return early in this case. See [1] for an example. Currently, fbcon_rotate_font() keeps the old buffer, which is too small for the rotated font. Printing to the rotated console with a high-enough character code will overflow the font buffer. v2: - fix typos in commit message

References

NVD — CVE-2026-46191 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46191
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/46cf3646de... WEB
https://git.kernel.org/stable/c/46cf3646dea54baeaa2eafe3fb1ba769947f31b0
git.kernel.org/stable/c/524a607939... WEB
https://git.kernel.org/stable/c/524a6079395916fb3d790ef2bb46a1d2939b27dd
git.kernel.org/stable/c/594973a2e5... WEB
https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80
git.kernel.org/stable/c/7105d9f138... WEB
https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f
git.kernel.org/stable/c/ab6c34b982... WEB
https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27
git.kernel.org/stable/c/b44cc78ff4... WEB
https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263
git.kernel.org/stable/c/b51c343a81... WEB
https://git.kernel.org/stable/c/b51c343a81e6e806525a4435e22532c107dd7e9d
git.kernel.org/stable/c/e4ef723d89... WEB
https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842

Frequently Asked Questions

What is CVE-2026-46191?
CVE-2026-46191 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46191?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46191?
CVE-2026-46191 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-2026-46191?
CVE-2026-46191 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-46191?
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-8j9w-r5cf-prpv",
  "modified" : "2026-10-15T03:36:04Z",
  "published" : "2026-05-28T12:30:32Z",
  "aliases" : [ "CVE-2026-46191" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Avoid OOB font access if console rotation fails\n\nClear the font buffer if the reallocation during console rotation fails\nin fbcon_rotate_font(). The putcs implementations for the rotated buffer\nwill return early in this case. See [1] for an example.\n\nCurrently, fbcon_rotate_font() keeps the old buffer, which is too small\nfor the rotated font. Printing to the rotated console with a high-enough\ncharacter code will overflow the font buffer.\n\nv2:\n- fix typos in commit message",
  "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-2026-46191"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/46cf3646dea54baeaa2eafe3fb1ba769947f31b0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/524a6079395916fb3d790ef2bb46a1d2939b27dd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f"
  }, {
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    "url" : "https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b51c343a81e6e806525a4435e22532c107dd7e9d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-28T10:16:34Z"
  }
}