CVE-2026-31470: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-86qf-jwhq-f4jq
Share
CVSS 7.1
CWE-125 CWE-787
Published
Advisory Summary

CVE-2026-31470 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-2026-31470 at a Glance

CVE Identifier CVE-2026-31470
GHSA Identifier GHSA-86qf-jwhq-f4jq
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-2026-31470

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-2026-31470, 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: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length Validate host controlled value `quote_buf->out_len` that determines how many bytes of the quote are copied out to guest userspace. In TDX environments with remote attestation, quotes are not considered private, and can be forwarded to an attestation server. Catch scenarios where the host specifies a response length larger than the guest's allocation, or otherwise races modifying the response while the guest consumes it. This prevents contents beyond the pages allocated for `quote_buf` (up to TSM_REPORT_OUTBLOB_MAX) from being read out to guest userspace, and possibly forwarded in attestation requests. Recall that some deployments want per-container configs-tsm-report interfaces, so the leak may cross container protection boundaries, not just local root.

References

NVD — CVE-2026-31470 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31470
git.kernel.org/stable/c/02ca2d9d19... WEB
https://git.kernel.org/stable/c/02ca2d9d197723696cb9cc0cb159eb7e8bf5f89b
git.kernel.org/stable/c/6f3c8795ae... WEB
https://git.kernel.org/stable/c/6f3c8795ae9ba74fa10fe979293d1904712d3fb1
git.kernel.org/stable/c/a079a62883... WEB
https://git.kernel.org/stable/c/a079a62883e3365de592cea9f7a669d8115433b0
git.kernel.org/stable/c/c3fd16c3b9... WEB
https://git.kernel.org/stable/c/c3fd16c3b98ed726294feab2f94f876290bf7b61

Frequently Asked Questions

What is CVE-2026-31470?
CVE-2026-31470 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-2026-31470?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-31470?
CVE-2026-31470 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-2026-31470?
CVE-2026-31470 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-2026-31470?
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-86qf-jwhq-f4jq",
  "modified" : "2026-04-27T15:30:38Z",
  "published" : "2026-04-22T15:31:42Z",
  "aliases" : [ "CVE-2026-31470" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvirt: tdx-guest: Fix handling of host controlled 'quote' buffer length\n\nValidate host controlled value `quote_buf->out_len` that determines how\nmany bytes of the quote are copied out to guest userspace. In TDX\nenvironments with remote attestation, quotes are not considered private,\nand can be forwarded to an attestation server.\n\nCatch scenarios where the host specifies a response length larger than\nthe guest's allocation, or otherwise races modifying the response while\nthe guest consumes it.\n\nThis prevents contents beyond the pages allocated for `quote_buf`\n(up to TSM_REPORT_OUTBLOB_MAX) from being read out to guest userspace,\nand possibly forwarded in attestation requests.\n\nRecall that some deployments want per-container configs-tsm-report\ninterfaces, so the leak may cross container protection boundaries, not\njust local root.",
  "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-2026-31470"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/02ca2d9d197723696cb9cc0cb159eb7e8bf5f89b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6f3c8795ae9ba74fa10fe979293d1904712d3fb1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a079a62883e3365de592cea9f7a669d8115433b0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c3fd16c3b98ed726294feab2f94f876290bf7b61"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125", "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-04-22T14:16:43Z"
  }
}