CVE-2026-98485: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-mhfj-849g-frgh
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Advisory Summary

CVE-2026-98485 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-2026-98485 at a Glance

CVE Identifier CVE-2026-98485
GHSA Identifier GHSA-mhfj-849g-frgh
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-2026-98485

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-2026-98485, 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: netfilter: ip6t_rt: fix zero-address non-strict match out-of-bounds read rt_mt6_check() permits rules to be configured with rtinfo->addrnr == 0 even when address matching (IP6T_RT_FST_MASK) is requested. In the IP6T_RT_FST_NSTRICT path, rt_mt6() evaluates packet routing addresses against rtinfo->addrs[i] and terminates backwards at the bottom of the loop: if (ipv6_addr_equal(ap, &rtinfo->addrs[i])) { i++; } if (i == rtinfo->addrnr) break; When addrnr is 0, if the first packet address matches rtinfo->addrs[0], i is incremented to 1. Because i is now strictly greater than addrnr (0), the loop termination condition (i == rtinfo->addrnr) is bypassed and will never be satisfied. If a crafted IPv6 packet contains matching routing addresses, i will advance past IP6T_RT_HOPS (16). The subsequent call to ipv6_addr_equal() reads beyond struct ip6t_rt, triggering UBSAN/KASAN out-of-bounds warnings or kernel panics. Fix this by: 1. Rejecting rules in rt_mt6_check() where IP6T_RT_FST_MASK is set but rtinfo->addrnr is zero. 2. In rt_mt6(), moving the termination condition (i < rtinfo->addrnr) into the for-loop header condition and removing the backwards break at the end of the loop body.

References

NVD — CVE-2026-98485 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98485
git.kernel.org/stable/c/191239b093... WEB
https://git.kernel.org/stable/c/191239b0939692e92459d8d32cad14247fa93f89
git.kernel.org/stable/c/5a54f8b7f7... WEB
https://git.kernel.org/stable/c/5a54f8b7f7fe207a5c14713015a5820588faf1ad
git.kernel.org/stable/c/82313c169e... WEB
https://git.kernel.org/stable/c/82313c169eddc02b1bf5ba6b427803e272d3ec42
git.kernel.org/stable/c/959d1829d1... WEB
https://git.kernel.org/stable/c/959d1829d1ce8b91b435b24a923b51bcc8897090
git.kernel.org/stable/c/b89249819a... WEB
https://git.kernel.org/stable/c/b89249819a7d6698bed152feafd3bc6c08489d15
git.kernel.org/stable/c/d9cf4ac6f3... WEB
https://git.kernel.org/stable/c/d9cf4ac6f326330e1fe4d95671d36a6ff3593f64
git.kernel.org/stable/c/dd55c0ea87... WEB
https://git.kernel.org/stable/c/dd55c0ea87bf70e4e4b3b683acd29ef981335b26
git.kernel.org/stable/c/fe336bab13... WEB
https://git.kernel.org/stable/c/fe336bab13834394320997de8b16ca4a913b4f13

Frequently Asked Questions

What is CVE-2026-98485?
CVE-2026-98485 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-2026-98485?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98485?
CVE-2026-98485 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98485?
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-mhfj-849g-frgh",
  "modified" : "2026-10-18T18:31:50Z",
  "published" : "2026-10-18T18:31:50Z",
  "aliases" : [ "CVE-2026-98485" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ip6t_rt: fix zero-address non-strict match out-of-bounds read\n\nrt_mt6_check() permits rules to be configured with rtinfo->addrnr == 0\neven when address matching (IP6T_RT_FST_MASK) is requested.\n\nIn the IP6T_RT_FST_NSTRICT path, rt_mt6() evaluates packet routing\naddresses against rtinfo->addrs[i] and terminates backwards at the bottom\nof the loop:\n\n    if (ipv6_addr_equal(ap, &rtinfo->addrs[i])) {\n        i++;\n    }\n    if (i == rtinfo->addrnr)\n        break;\n\nWhen addrnr is 0, if the first packet address matches rtinfo->addrs[0],\ni is incremented to 1. Because i is now strictly greater than addrnr (0),\nthe loop termination condition (i == rtinfo->addrnr) is bypassed and will\nnever be satisfied.\n\nIf a crafted IPv6 packet contains matching routing addresses, i will\nadvance past IP6T_RT_HOPS (16). The subsequent call to ipv6_addr_equal()\nreads beyond struct ip6t_rt, triggering UBSAN/KASAN out-of-bounds warnings\nor kernel panics.\n\nFix this by:\n1. Rejecting rules in rt_mt6_check() where IP6T_RT_FST_MASK is set but\n   rtinfo->addrnr is zero.\n2. In rt_mt6(), moving the termination condition (i < rtinfo->addrnr)\n   into the for-loop header condition and removing the backwards break\n   at the end of the loop body.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98485"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/191239b0939692e92459d8d32cad14247fa93f89"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5a54f8b7f7fe207a5c14713015a5820588faf1ad"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/82313c169eddc02b1bf5ba6b427803e272d3ec42"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/959d1829d1ce8b91b435b24a923b51bcc8897090"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b89249819a7d6698bed152feafd3bc6c08489d15"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d9cf4ac6f326330e1fe4d95671d36a6ff3593f64"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dd55c0ea87bf70e4e4b3b683acd29ef981335b26"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fe336bab13834394320997de8b16ca4a913b4f13"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:16:59Z"
  }
}