CVE-2026-72255: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-gv97-ph2v-g3p8
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CVSS 7.8
Published
Advisory Summary

CVE-2026-72255 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72255 at a Glance

CVE Identifier CVE-2026-72255
GHSA Identifier GHSA-gv97-ph2v-g3p8
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
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-2026-72255

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-2026-72255, 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: nf_queue: pin bridge device while NFQUEUE holds fake dst The br_netfilter fake rtable is embedded in struct net_bridge and is attached to bridged packets with skb_dst_set_noref(). If such a packet is queued to NFQUEUE, __nf_queue() upgrades that fake dst with skb_dst_force(). At that point the queued skb can hold a real dst reference after bridge teardown has started. The problem is not that every bridged packet needs its own dst reference. The problem is that NFQUEUE can keep the bridge private fake dst alive after unregister begins. Fix this by keeping the bridge fake dst model unchanged and pinning the bridge master device only while the packet sits in NFQUEUE. Record the bridge device in nf_queue_entry when the queued skb carries a bridge fake dst, take a device reference for the queue lifetime, and drop it when the queue entry is freed. Also make sure queued entries are reaped when that bridge device goes down, and drop the redundant nf_bridge_info_exists() test from the fake dst detection. This keeps netdev_priv(br->dev) alive until verdict completion, so the embedded fake rtable and its metrics backing storage cannot be freed out from under dst_release(). It also avoids the constant refcount bump and avoids using ipv4-specific dst helpers for IPv6 bridge traffic.

References

NVD — CVE-2026-72255 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72255
git.kernel.org/stable/c/01ace27af4... WEB
https://git.kernel.org/stable/c/01ace27af47801dd7f6b839e782b62863af979cc
git.kernel.org/stable/c/0ca505346c... WEB
https://git.kernel.org/stable/c/0ca505346c5e2905ab7b5313af801fcf38f594a8
git.kernel.org/stable/c/3f03a2d225... WEB
https://git.kernel.org/stable/c/3f03a2d225c668283110ad5f9ff159ba4591e2c7
git.kernel.org/stable/c/430521af7f... WEB
https://git.kernel.org/stable/c/430521af7fe8a9c08f5a2554224a35f11f51d99e
git.kernel.org/stable/c/47b3af24de... WEB
https://git.kernel.org/stable/c/47b3af24de5fbed4bf2952de0f5294ef1a338a26
git.kernel.org/stable/c/4e56d3d60d... WEB
https://git.kernel.org/stable/c/4e56d3d60d3192ef0a0c08e8b433636690189384
git.kernel.org/stable/c/8dc5135147... WEB
https://git.kernel.org/stable/c/8dc51351472825500145eed5bddfb88b2ec32008
git.kernel.org/stable/c/c9c9b37f8c... WEB
https://git.kernel.org/stable/c/c9c9b37f8c5505224e8d206184df3bb668ee00cf

Frequently Asked Questions

What is CVE-2026-72255?
CVE-2026-72255 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-2026-72255?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72255?
CVE-2026-72255 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72255?
CVE-2026-72255 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72255?
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-gv97-ph2v-g3p8",
  "modified" : "2026-09-14T12:31:31Z",
  "published" : "2026-08-15T06:32:17Z",
  "aliases" : [ "CVE-2026-72255" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst\n\nThe br_netfilter fake rtable is embedded in struct net_bridge and is\nattached to bridged packets with skb_dst_set_noref(). If such a packet is\nqueued to NFQUEUE, __nf_queue() upgrades that fake dst with\nskb_dst_force().\n\nAt that point the queued skb can hold a real dst reference after bridge\nteardown has started. The problem is not that every bridged packet needs\nits own dst reference. The problem is that NFQUEUE can keep the bridge\nprivate fake dst alive after unregister begins.\n\nFix this by keeping the bridge fake dst model unchanged and pinning the\nbridge master device only while the packet sits in NFQUEUE. Record the\nbridge device in nf_queue_entry when the queued skb carries a bridge fake\ndst, take a device reference for the queue lifetime, and drop it when the\nqueue entry is freed.\n\nAlso make sure queued entries are reaped when that bridge device goes\ndown, and drop the redundant nf_bridge_info_exists() test from the fake\ndst detection.\n\nThis keeps netdev_priv(br->dev) alive until verdict completion, so the\nembedded fake rtable and its metrics backing storage cannot be freed out\nfrom under dst_release(). It also avoids the constant refcount bump and\navoids using ipv4-specific dst helpers for IPv6 bridge traffic.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72255"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/01ace27af47801dd7f6b839e782b62863af979cc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0ca505346c5e2905ab7b5313af801fcf38f594a8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3f03a2d225c668283110ad5f9ff159ba4591e2c7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/430521af7fe8a9c08f5a2554224a35f11f51d99e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/47b3af24de5fbed4bf2952de0f5294ef1a338a26"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4e56d3d60d3192ef0a0c08e8b433636690189384"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8dc51351472825500145eed5bddfb88b2ec32008"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c9c9b37f8c5505224e8d206184df3bb668ee00cf"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:53Z"
  }
}