CVE-2026-72348: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-mf85-825j-jwwx
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CVSS 9.1
Published
Advisory Summary

CVE-2026-72348 is a CRITICAL (CVSS 9.1) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72348 at a Glance

CVE Identifier CVE-2026-72348
GHSA Identifier GHSA-mf85-825j-jwwx
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-72348

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-2026-72348, 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: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header length for matching. For the ah match, add the missing advertised-length check. For hbh and rt, update the existing advertised-length checks. In all three cases, set hotdrop to true before returning false when the advertised extension header length exceeds the available skb data. Returning false treats the packet as a rule mismatch. Set hotdrop to true and drop malformed packets so they cannot bypass rules intended to drop packets with these IPv6 extension headers.

References

git.kernel.org/stable/c/f775fcf384... WEB
https://git.kernel.org/stable/c/f775fcf384b06f35b612f78fa5601fee99eb6513
git.kernel.org/stable/c/fc41687010... WEB
https://git.kernel.org/stable/c/fc416870100cf16d5b9495199355a679c3a02d48
NVD — CVE-2026-72348 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72348
git.kernel.org/stable/c/2fd89a50a9... WEB
https://git.kernel.org/stable/c/2fd89a50a9783eed8ed23866b11c8b3d8779a7a8
git.kernel.org/stable/c/3578b6d92a... WEB
https://git.kernel.org/stable/c/3578b6d92a5b1e603ae6e8c8f5538a709f03aba4
git.kernel.org/stable/c/3d441be2b1... WEB
https://git.kernel.org/stable/c/3d441be2b1c5e98167302fa1c7b61960a067b112
git.kernel.org/stable/c/43ccc20b5a... WEB
https://git.kernel.org/stable/c/43ccc20b5a733226417832cf16ef45322e594990
git.kernel.org/stable/c/d5e39e5eb6... WEB
https://git.kernel.org/stable/c/d5e39e5eb6b30bc4a3bb7aba54c293cf36a806c7
git.kernel.org/stable/c/f16d856b6a... WEB
https://git.kernel.org/stable/c/f16d856b6af5fd0e7cb0b0212f70825b599ef72e

Frequently Asked Questions

What is CVE-2026-72348?
CVE-2026-72348 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-2026-72348?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72348?
CVE-2026-72348 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-72348?
CVE-2026-72348 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72348?
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-mf85-825j-jwwx",
  "modified" : "2026-08-17T06:33:24Z",
  "published" : "2026-08-15T06:32:21Z",
  "aliases" : [ "CVE-2026-72348" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop\n\nThe ah, hbh and rt matches check that the fixed extension header is\npresent, then use the header length field to derive the advertised\nextension header length for matching.\n\nFor the ah match, add the missing advertised-length check. For hbh\nand rt, update the existing advertised-length checks. In all three\ncases, set hotdrop to true before returning false when the advertised\nextension header length exceeds the available skb data.\n\nReturning false treats the packet as a rule mismatch. Set hotdrop to\ntrue and drop malformed packets so they cannot bypass rules intended\nto drop packets with these IPv6 extension headers.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ ],
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  }, {
    "type" : "WEB",
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  "database_specific" : {
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    "severity" : "CRITICAL",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:08Z"
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}