CVE-2026-74268: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-37cp-x28m-gm7h
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CVSS 9.8
Published
Advisory Summary

CVE-2026-74268 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74268 at a Glance

CVE Identifier CVE-2026-74268
GHSA Identifier GHSA-37cp-x28m-gm7h
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H).

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 High (A:H)

How to Fix CVE-2026-74268

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-2026-74268, 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: tcp: clear sock_ops cb flags before force-closing a child socket A child socket inherits the listener's bpf_sock_ops_cb_flags via sk_clone_lock(). If its setup fails in tcp_v4_syn_recv_sock() / tcp_v6_syn_recv_sock(), the child is freed through put_and_exit, where inet_csk_prepare_forced_close() drops the socket lock and tcp_done() runs without it. If BPF_SOCK_OPS_STATE_CB_FLAG was inherited, tcp_done() -> tcp_set_state() calls tcp_call_bpf(), which expects the lock and trips sock_owned_by_me(): WARNING: include/net/sock.h:1799 at tcp_set_state+0x433/0x550 RIP: 0010:tcp_set_state+0x433/0x550 include/net/sock.h:1799 Call Trace: <IRQ> tcp_done+0xba/0x250 net/ipv4/tcp.c:5095 tcp_v4_syn_recv_sock+0x850/0xa50 net/ipv4/tcp_ipv4.c:1787 tcp_check_req+0xf30/0x1360 net/ipv4/tcp_minisocks.c:926 tcp_v4_rcv+0x1047/0x1b50 net/ipv4/tcp_ipv4.c:2164 </IRQ> The child is freed before it is ever established, so it should run no sock_ops callback. Clear its cb flags in inet_csk_prepare_for_destroy_sock(), the common point for the IPv4, IPv6 and chtls forced-close paths and for the MPTCP ->syn_recv_sock() failure path (dispose_child), which reaches tcp_done() on a child that was never established too.

References

NVD — CVE-2026-74268 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74268
git.kernel.org/stable/c/5d5389b2c3... WEB
https://git.kernel.org/stable/c/5d5389b2c37ca00da61d1407618ebe15abae0c8b
git.kernel.org/stable/c/71e9c53220... WEB
https://git.kernel.org/stable/c/71e9c53220abd7f5a45aa4d5e5b420d3479f3a4f
git.kernel.org/stable/c/8874dafc90... WEB
https://git.kernel.org/stable/c/8874dafc9099bc49c2e5ebba030f85d276421f92
git.kernel.org/stable/c/990348e5bb... WEB
https://git.kernel.org/stable/c/990348e5bb457697c2f1f7f7b65154a3334d9d2b
git.kernel.org/stable/c/9f30ba9aa0... WEB
https://git.kernel.org/stable/c/9f30ba9aa0270a18fdd1e6cd426c480c35f7de9d
git.kernel.org/stable/c/9fffa64658... WEB
https://git.kernel.org/stable/c/9fffa6465851a1910a6e9cb7272787dd615b26b1
git.kernel.org/stable/c/ce311bd2e3... WEB
https://git.kernel.org/stable/c/ce311bd2e36596f0aa2c92ca86fb3e019ac57eae
git.kernel.org/stable/c/fe23d56e92... WEB
https://git.kernel.org/stable/c/fe23d56e9266d58ba5c380f1970118eedeee0b68

Frequently Asked Questions

What is CVE-2026-74268?
CVE-2026-74268 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-2026-74268?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74268?
CVE-2026-74268 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-74268?
CVE-2026-74268 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74268?
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-37cp-x28m-gm7h",
  "modified" : "2026-09-14T12:31:32Z",
  "published" : "2026-08-15T06:32:27Z",
  "aliases" : [ "CVE-2026-74268" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: clear sock_ops cb flags before force-closing a child socket\n\nA child socket inherits the listener's bpf_sock_ops_cb_flags via\nsk_clone_lock(). If its setup fails in tcp_v4_syn_recv_sock() /\ntcp_v6_syn_recv_sock(), the child is freed through put_and_exit, where\ninet_csk_prepare_forced_close() drops the socket lock and tcp_done() runs\nwithout it.\n\nIf BPF_SOCK_OPS_STATE_CB_FLAG was inherited, tcp_done() -> tcp_set_state()\ncalls tcp_call_bpf(), which expects the lock and trips sock_owned_by_me():\n\n  WARNING: include/net/sock.h:1799 at tcp_set_state+0x433/0x550\n  RIP: 0010:tcp_set_state+0x433/0x550 include/net/sock.h:1799\n  Call Trace:\n   <IRQ>\n   tcp_done+0xba/0x250 net/ipv4/tcp.c:5095\n   tcp_v4_syn_recv_sock+0x850/0xa50 net/ipv4/tcp_ipv4.c:1787\n   tcp_check_req+0xf30/0x1360 net/ipv4/tcp_minisocks.c:926\n   tcp_v4_rcv+0x1047/0x1b50 net/ipv4/tcp_ipv4.c:2164\n   </IRQ>\n\nThe child is freed before it is ever established, so it should run no\nsock_ops callback. Clear its cb flags in inet_csk_prepare_for_destroy_sock(),\nthe common point for the IPv4, IPv6 and chtls forced-close paths and for the\nMPTCP ->syn_recv_sock() failure path (dispose_child), which reaches tcp_done()\non a child that was never established too.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74268"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5d5389b2c37ca00da61d1407618ebe15abae0c8b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/71e9c53220abd7f5a45aa4d5e5b420d3479f3a4f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8874dafc9099bc49c2e5ebba030f85d276421f92"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/990348e5bb457697c2f1f7f7b65154a3334d9d2b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9f30ba9aa0270a18fdd1e6cd426c480c35f7de9d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9fffa6465851a1910a6e9cb7272787dd615b26b1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ce311bd2e36596f0aa2c92ca86fb3e019ac57eae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fe23d56e9266d58ba5c380f1970118eedeee0b68"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:26Z"
  }
}