CVE-2026-98655: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-73f2-5qh8-h6cg
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Advisory Summary

CVE-2026-98655 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-2026-98655 at a Glance

CVE Identifier CVE-2026-98655
GHSA Identifier GHSA-73f2-5qh8-h6cg
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-2026-98655

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-2026-98655, 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: perf: Require kernel access for text poke events Perf events with exclude_kernel=1 can be opened without kernel perf access. However, exclude_kernel does not suppress text-poke sideband records. Every PERF_RECORD_TEXT_POKE is marked PERF_RECORD_MISC_KERNEL and contains a raw kernel instruction address. An unprivileged task can therefore open and mmap a task-local software event with text_poke=1. Both opening a count-only tracepoint event and configuring UDP GRO for ESP-in-UDP cause updates to inline static calls; the observer receives the relocated addresses of the modified instructions. For a known kernel image, any such address reveals the runtime kernel text base despite KASLR. Call perf_allow_kernel() whenever attr.text_poke is set, regardless of exclude_kernel. Events that neither monitor kernel execution nor request text-poke records retain their existing permissions.

References

NVD — CVE-2026-98655 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98655
git.kernel.org/stable/c/357e8a77a5... WEB
https://git.kernel.org/stable/c/357e8a77a501d96c9517f01f4a211eed5e9c9184
git.kernel.org/stable/c/677d0b51ac... WEB
https://git.kernel.org/stable/c/677d0b51ac1a0db55d768c4c6399210b3de0795b
git.kernel.org/stable/c/8473f44db9... WEB
https://git.kernel.org/stable/c/8473f44db9f710ea6f8cafb22f2e3ba6cb8ca9a7
git.kernel.org/stable/c/e506333d1b... WEB
https://git.kernel.org/stable/c/e506333d1b9f42f1e402acebf1283af3c44a3809

Frequently Asked Questions

What is CVE-2026-98655?
CVE-2026-98655 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-2026-98655?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98655?
CVE-2026-98655 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98655?
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-73f2-5qh8-h6cg",
  "modified" : "2026-10-18T18:31:58Z",
  "published" : "2026-10-18T18:31:58Z",
  "aliases" : [ "CVE-2026-98655" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nperf: Require kernel access for text poke events\n\nPerf events with exclude_kernel=1 can be opened without kernel perf\naccess. However, exclude_kernel does not suppress text-poke sideband\nrecords. Every PERF_RECORD_TEXT_POKE is marked PERF_RECORD_MISC_KERNEL\nand contains a raw kernel instruction address.\n\nAn unprivileged task can therefore open and mmap a task-local software\nevent with text_poke=1. Both opening a count-only tracepoint event and\nconfiguring UDP GRO for ESP-in-UDP cause updates to inline static calls;\nthe observer receives the relocated addresses of the modified instructions.\nFor a known kernel image, any such address reveals the runtime kernel\ntext base despite KASLR.\n\nCall perf_allow_kernel() whenever attr.text_poke is set, regardless of\nexclude_kernel. Events that neither monitor kernel execution nor request\ntext-poke records retain their existing permissions.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98655"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/357e8a77a501d96c9517f01f4a211eed5e9c9184"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/677d0b51ac1a0db55d768c4c6399210b3de0795b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8473f44db9f710ea6f8cafb22f2e3ba6cb8ca9a7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e506333d1b9f42f1e402acebf1283af3c44a3809"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:18Z"
  }
}