CVE-2026-98030: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-hmh5-2wm8-hhp7
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CVSS 7.0
Published
Advisory Summary

CVE-2026-98030 is a HIGH (CVSS 7.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98030 at a Glance

CVE Identifier CVE-2026-98030
GHSA Identifier GHSA-hmh5-2wm8-hhp7
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification General Security Weakness
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-2026-98030

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-2026-98030, 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: net: dsa: bcm_sf2: bound the CFP rule dump by the caller's buffer size bcm_sf2_cfp_rule_get_all() walks the whole cfp.unique bitmap into rule_locs[] without consulting nfc->rule_cnt, which is how many entries the caller had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN and the ioctl sizes the buffer from the rule_cnt userspace passes in, so once an admin has installed CFP rules any user can ask for fewer slots than there are rules and run off the end of the allocation. A rule_cnt of 0 leaves the buffer pointer NULL and the walk dereferences it.

References

NVD — CVE-2026-98030 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98030
git.kernel.org/stable/c/8e41ce0258... WEB
https://git.kernel.org/stable/c/8e41ce02589c92356bfd8ef62f6ceff840546e1a
git.kernel.org/stable/c/b231b6d851... WEB
https://git.kernel.org/stable/c/b231b6d8516d3fe0d4bba549908e08d26a4531a5
git.kernel.org/stable/c/ca49c52629... WEB
https://git.kernel.org/stable/c/ca49c526291d7cd3a5cb49b0edd7f50a5ae7176e
git.kernel.org/stable/c/cdb719f4b8... WEB
https://git.kernel.org/stable/c/cdb719f4b8596d9ccee2d56d204c2c4dce982f46
git.kernel.org/stable/c/f1a2869b36... WEB
https://git.kernel.org/stable/c/f1a2869b3629c0e8394b77b38cb9f19a018c653c
git.kernel.org/stable/c/f2cf4ef2d9... WEB
https://git.kernel.org/stable/c/f2cf4ef2d94fc15fd2e21c131fc1ab3f76125bf4
git.kernel.org/stable/c/f5e93162b3... WEB
https://git.kernel.org/stable/c/f5e93162b3dd195bfda815e8f7a39aaf1d45437b
git.kernel.org/stable/c/fd1a78c16b... WEB
https://git.kernel.org/stable/c/fd1a78c16b1f6978c09cf048e15f349732e4c707

Frequently Asked Questions

What is CVE-2026-98030?
CVE-2026-98030 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-2026-98030?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-98030?
CVE-2026-98030 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-2026-98030?
CVE-2026-98030 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98030?
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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  "id" : "GHSA-hmh5-2wm8-hhp7",
  "modified" : "2026-10-03T12:31:25Z",
  "published" : "2026-09-25T12:31:33Z",
  "aliases" : [ "CVE-2026-98030" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: bcm_sf2: bound the CFP rule dump by the caller's buffer size\n\nbcm_sf2_cfp_rule_get_all() walks the whole cfp.unique bitmap into\nrule_locs[] without consulting nfc->rule_cnt, which is how many entries\nthe caller had room for.  ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN\nand the ioctl sizes the buffer from the rule_cnt userspace passes in, so\nonce an admin has installed CFP rules any user can ask for fewer slots\nthan there are rules and run off the end of the allocation.  A rule_cnt\nof 0 leaves the buffer pointer NULL and the walk dereferences it.",
  "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" : [ ],
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    "url" : "https://git.kernel.org/stable/c/8e41ce02589c92356bfd8ef62f6ceff840546e1a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b231b6d8516d3fe0d4bba549908e08d26a4531a5"
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    "type" : "WEB",
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  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:31Z"
  }
}