CVE-2026-23119: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-8jcj-2cc9-ghpj
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2026-23119 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-23119 at a Glance

CVE Identifier CVE-2026-23119
GHSA Identifier GHSA-8jcj-2cc9-ghpj
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-23119

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-2026-23119, 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 CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: bonding: provide a net pointer to __skb_flow_dissect() After 3cbf4ffba5ee ("net: plumb network namespace into __skb_flow_dissect") we have to provide a net pointer to __skb_flow_dissect(), either via skb->dev, skb->sk, or a user provided pointer. In the following case, syzbot was able to cook a bare skb. WARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053 Call Trace: <TASK> bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline] __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157 bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline] bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline] bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515 xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388 bpf_prog_run_xdp include/net/xdp.h:700 [inline] bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421 bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703 __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182 __do_sys_bpf kernel/bpf/syscall.c:6274 [inline] __se_sys_bpf kernel/bpf/syscall.c:6272 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94

References

NVD — CVE-2026-23119 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23119
git.kernel.org/stable/c/0efee0b992... WEB
https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907
git.kernel.org/stable/c/3be945abdd... WEB
https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b
git.kernel.org/stable/c/5f9b329096... WEB
https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752
git.kernel.org/stable/c/8e53780732... WEB
https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e
git.kernel.org/stable/c/bc3c8d2493... WEB
https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa
git.kernel.org/stable/c/de97735a40... WEB
https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db
git.kernel.org/stable/c/f4faaa1297... WEB
https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84

Frequently Asked Questions

What is CVE-2026-23119?
CVE-2026-23119 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-23119?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-23119?
CVE-2026-23119 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-23119?
CVE-2026-23119 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2026-23119?
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-8jcj-2cc9-ghpj",
  "modified" : "2026-03-18T15:30:40Z",
  "published" : "2026-02-14T15:32:18Z",
  "aliases" : [ "CVE-2026-23119" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb->dev, skb->sk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n <TASK>\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-23119"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-02-14T15:16:07Z"
  }
}