CVE-2026-98626: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-7qcx-cmxq-wh7w
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Advisory Summary

CVE-2026-98626 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-2026-98626 at a Glance

CVE Identifier CVE-2026-98626
GHSA Identifier GHSA-7qcx-cmxq-wh7w
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-2026-98626

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-2026-98626, 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: Restrict CO-RE poisoning to relocatable instructions CO-RE relocation records can name any instruction offset. When a relocation cannot be resolved, bpf_core_patch_insn() currently poisons its target before checking whether that instruction is a valid relocation target. Malformed metadata can therefore replace jumps, calls, exits, register-source arithmetic, or non-immediate loads instead of failing at the relocation step. Handle poisoning only after the instruction has passed the same class and operand-form checks used for a resolved relocation. Route invalid forms through the existing diagnostic and return a hard error. Keep poisoning supported instructions, including both halves of a plain ldimm64, so an unresolved relocation in dead code remains valid. Extend bpf_core_poison_insn() to poison both halves of ldimm64, and return its status directly from each validated instruction case. This avoids routing the success path through a common label and leaves the helper free to report errors. The shared relocation code applies this restriction to both libbpf and in-kernel CO-RE.

References

NVD — CVE-2026-98626 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98626
git.kernel.org/stable/c/2d7d04357c... WEB
https://git.kernel.org/stable/c/2d7d04357c41aa49a5ac658fcc207439f2ad6456
git.kernel.org/stable/c/394ae39833... WEB
https://git.kernel.org/stable/c/394ae398337c5f87e567f6cd63b937fc2b2f6ddc
git.kernel.org/stable/c/8e4cbcca1e... WEB
https://git.kernel.org/stable/c/8e4cbcca1e0a2fc5e6c8edb68e0cf5f2587f9319
git.kernel.org/stable/c/a0b79cdfcf... WEB
https://git.kernel.org/stable/c/a0b79cdfcf34b53c85bac2d3cf022fc1342eeca0
git.kernel.org/stable/c/a8c47e62d9... WEB
https://git.kernel.org/stable/c/a8c47e62d9aea2d47a09e06c1682c59c21b92449
git.kernel.org/stable/c/d3219c229d... WEB
https://git.kernel.org/stable/c/d3219c229d16900cef936adad28633c98946e432
git.kernel.org/stable/c/f2a24101e8... WEB
https://git.kernel.org/stable/c/f2a24101e89dd0804e717da7c1bd6af513698aa2

Frequently Asked Questions

What is CVE-2026-98626?
CVE-2026-98626 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-2026-98626?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98626?
CVE-2026-98626 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98626?
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-7qcx-cmxq-wh7w",
  "modified" : "2026-10-18T18:31:57Z",
  "published" : "2026-10-18T18:31:56Z",
  "aliases" : [ "CVE-2026-98626" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Restrict CO-RE poisoning to relocatable instructions\n\nCO-RE relocation records can name any instruction offset. When a\nrelocation cannot be resolved, bpf_core_patch_insn() currently poisons its\ntarget before checking whether that instruction is a valid relocation\ntarget. Malformed metadata can therefore replace jumps, calls, exits,\nregister-source arithmetic, or non-immediate loads instead of failing at\nthe relocation step.\n\nHandle poisoning only after the instruction has passed the same class and\noperand-form checks used for a resolved relocation. Route invalid forms\nthrough the existing diagnostic and return a hard error. Keep poisoning\nsupported instructions, including both halves of a plain ldimm64, so an\nunresolved relocation in dead code remains valid.\n\nExtend bpf_core_poison_insn() to poison both halves of ldimm64, and return\nits status directly from each validated instruction case. This avoids\nrouting the success path through a common label and leaves the helper free\nto report errors.\n\nThe shared relocation code applies this restriction to both libbpf and\nin-kernel CO-RE.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98626"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2d7d04357c41aa49a5ac658fcc207439f2ad6456"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/394ae398337c5f87e567f6cd63b937fc2b2f6ddc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8e4cbcca1e0a2fc5e6c8edb68e0cf5f2587f9319"
  }, {
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a8c47e62d9aea2d47a09e06c1682c59c21b92449"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f2a24101e89dd0804e717da7c1bd6af513698aa2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:15Z"
  }
}