CVE-2026-46309: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-vpjp-gfpq-57c9
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CVSS 7.0
CWE-524 CWE-401
Published
Advisory Summary

CVE-2026-46309 is a HIGH (CVSS 7.0) security vulnerability vulnerability (CWE-524: Use of Cache Containing Sensitive Information) affecting Software libraries in the Maven ecosystem. The weakness occurs when the code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46309 at a Glance

CVE Identifier CVE-2026-46309
GHSA Identifier GHSA-vpjp-gfpq-57c9
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification CWE-524: Use of Cache Containing Sensitive Information
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.0

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

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2026-46309

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-2026-46309, 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-524: Use of Cache Containing Sensitive Information, where the code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere. 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/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise Add validation in xe_vm_madvise_ioctl() to reject PAT indices with XE_COH_NONE coherency mode when applied to CPU cached memory. Using coh_none with CPU cached buffers is a security issue. When the kernel clears pages before reallocation, the clear operation stays in CPU cache (dirty). GPU with coh_none can bypass CPU caches and read stale sensitive data directly from DRAM, potentially leaking data from previously freed pages of other processes. This aligns with the existing validation in vm_bind path (xe_vm_bind_ioctl_validate_bo). v2(Matthew brost) - Add fixes - Move one debug print to better place v3(Matthew Auld) - Should be drm/xe/uapi - More Cc v4(Shuicheng Lin) - Fix kmem leak issues by the way v5 - Remove kmem leak because it has been merged by another patch v6 - Remove the fix which is not related to current fix v7 - No change v8 - Rebase v9 - Limit the restrictions to iGPU v10 - No change (cherry picked from commit 016ccdb674b8c899940b3944952c96a6a490d10a)

References

NVD — CVE-2026-46309 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46309
Software Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-46309
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2486468
git.kernel.org/stable/c/4e5591c2fc... WEB
https://git.kernel.org/stable/c/4e5591c2fc1b30f4ea5e2eab4c3a695acc404e39
git.kernel.org/stable/c/87f9b1528e... WEB
https://git.kernel.org/stable/c/87f9b1528e1ffc1da3615d552c9a06aba5e20b00
git.kernel.org/stable/c/fea04cf6f2... WEB
https://git.kernel.org/stable/c/fea04cf6f2345bc50f15b6638906c35962b89424
Software Security Information SECURITY
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46309.json

Frequently Asked Questions

What is CVE-2026-46309?
CVE-2026-46309 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-524: Use of Cache Containing Sensitive Information.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46309?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46309?
CVE-2026-46309 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-46309?
CVE-2026-46309 is classified under CWE-524: Use of Cache Containing Sensitive Information (The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.).
How can I check Maven dependencies for CVE-2026-46309?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-vpjp-gfpq-57c9",
  "modified" : "2026-06-30T03:36:57Z",
  "published" : "2026-06-08T18:31:53Z",
  "aliases" : [ "CVE-2026-46309" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise\n\nAdd validation in xe_vm_madvise_ioctl() to reject PAT indices with\nXE_COH_NONE coherency mode when applied to CPU cached memory.\n\nUsing coh_none with CPU cached buffers is a security issue. When the\nkernel clears pages before reallocation, the clear operation stays in\nCPU cache (dirty). GPU with coh_none can bypass CPU caches and read\nstale sensitive data directly from DRAM, potentially leaking data from\npreviously freed pages of other processes.\n\nThis aligns with the existing validation in vm_bind path\n(xe_vm_bind_ioctl_validate_bo).\n\nv2(Matthew brost)\n- Add fixes\n- Move one debug print to better place\n\nv3(Matthew Auld)\n- Should be drm/xe/uapi\n- More Cc\n\nv4(Shuicheng Lin)\n- Fix kmem leak issues by the way\n\nv5\n- Remove kmem leak because it has been merged by another patch\n\nv6\n- Remove the fix which is not related to current fix\n\nv7\n- No change\n\nv8\n- Rebase\n\nv9\n- Limit the restrictions to iGPU\n\nv10\n- No change\n\n(cherry picked from commit 016ccdb674b8c899940b3944952c96a6a490d10a)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
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    "url" : "https://access.redhat.com/security/cve/CVE-2026-46309"
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    "type" : "WEB",
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  "database_specific" : {
    "cwe_ids" : [ "CWE-401", "CWE-524" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-08T17:16:49Z"
  }
}