CVE-2026-64508: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-667g-8hv2-vmxj
Share
Published
Advisory Summary

CVE-2026-64508 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64508 at a Glance

CVE Identifier CVE-2026-64508
GHSA Identifier GHSA-667g-8hv2-vmxj
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-64508

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-2026-64508, 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 General Security Weakness. 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: bpf: Support for hardening against JIT spraying The BPF JIT allocator packs many small programs into larger executable allocations and reuses space within those allocations as programs are loaded and freed. When fresh code is written into space that a previous program occupied, an indirect jump into the new program can reuse a branch prediction left behind by the old one. Flush the indirect branch predictors before reusing JIT memory so that indirect jumps into a newly written program don't reuse predictions from an old program that occupied the same space. Introduce bpf_arch_pred_flush_enabled static key and bpf_arch_pred_flush static call for flushing the branch predictors on JIT memory reuse. Architectures that need a flush, can update it to a predictor flush function. By default, its a NOP and does not emit any CALL. Allocations larger than a pack are not covered by this flush. That is safe because cBPF programs (the unprivileged attack surface) are bounded well below a pack size. Issue a warning if this assumption is ever violated while the flush is active.

References

NVD — CVE-2026-64508 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64508
git.kernel.org/stable/c/1fbafd5235... WEB
https://git.kernel.org/stable/c/1fbafd5235ca897b322161659ebe8ba651b00b3b
git.kernel.org/stable/c/6e52c240c4... WEB
https://git.kernel.org/stable/c/6e52c240c43a601b681e3a4e58fc5685114d4726
git.kernel.org/stable/c/7a6c171c6a... WEB
https://git.kernel.org/stable/c/7a6c171c6a1ac6d1509752dac131d941a3de0b37
git.kernel.org/stable/c/8ff183ee4d... WEB
https://git.kernel.org/stable/c/8ff183ee4d8c452960df58175a094828c0513b2e
git.kernel.org/stable/c/96cce16e26... WEB
https://git.kernel.org/stable/c/96cce16e26dd02a8678f1e87f88a4b5cdb63b995
git.kernel.org/stable/c/eed774da60... WEB
https://git.kernel.org/stable/c/eed774da601268dae674e14d54a15e3624691f52

Frequently Asked Questions

What is CVE-2026-64508?
CVE-2026-64508 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64508?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-64508?
CVE-2026-64508 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64508?
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-667g-8hv2-vmxj",
  "modified" : "2026-08-19T18:32:01Z",
  "published" : "2026-07-25T12:31:38Z",
  "aliases" : [ "CVE-2026-64508" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Support for hardening against JIT spraying\n\nThe BPF JIT allocator packs many small programs into larger executable\nallocations and reuses space within those allocations as programs are\nloaded and freed. When fresh code is written into space that a previous\nprogram occupied, an indirect jump into the new program can reuse a branch\nprediction left behind by the old one.\n\nFlush the indirect branch predictors before reusing JIT memory so that\nindirect jumps into a newly written program don't reuse predictions from an\nold program that occupied the same space.\n\nIntroduce bpf_arch_pred_flush_enabled static key and bpf_arch_pred_flush\nstatic call for flushing the branch predictors on JIT memory reuse.\nArchitectures that need a flush, can update it to a predictor flush\nfunction. By default, its a NOP and does not emit any CALL.\n\nAllocations larger than a pack are not covered by this flush. That is safe\nbecause cBPF programs (the unprivileged attack surface) are bounded well\nbelow a pack size. Issue a warning if this assumption is ever violated\nwhile the flush is active.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64508"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1fbafd5235ca897b322161659ebe8ba651b00b3b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6e52c240c43a601b681e3a4e58fc5685114d4726"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7a6c171c6a1ac6d1509752dac131d941a3de0b37"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8ff183ee4d8c452960df58175a094828c0513b2e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/96cce16e26dd02a8678f1e87f88a4b5cdb63b995"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/eed774da601268dae674e14d54a15e3624691f52"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:36Z"
  }
}