CVE-2026-72057: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-r6mf-v83v-v392
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CVSS 8.2
CWE-662
Published
Advisory Summary

CVE-2026-72057 is a HIGH (CVSS 8.2) security vulnerability vulnerability (CWE-662: Improper Synchronization) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72057 at a Glance

CVE Identifier CVE-2026-72057
GHSA Identifier GHSA-r6mf-v83v-v392
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-662: Improper Synchronization
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.2

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

How to Fix CVE-2026-72057

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-2026-72057, 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-662: Improper Synchronization, where the product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes. 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: net/sched: act_ct: preserve tc_skb_cb across defragmentation tcf_ct_handle_fragments() calls nf_ct_handle_fragments() without saving and restoring skb->cb. The defrag helper clears IPCB/IP6CB, which aliases the tc_skb_cb/qdisc_skb_cb control buffer. Fragmented traffic through act_ct therefore loses qdisc metadata such as pkt_segs and can trigger WARN_ON_ONCE() in qdisc_pkt_segs() when panic_on_warn is enabled. Save and restore the full tc_skb_cb around nf_ct_handle_fragments(), matching the pattern used by ovs_ct_handle_fragments().

References

NVD — CVE-2026-72057 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72057
git.kernel.org/stable/c/2400c4b05d... WEB
https://git.kernel.org/stable/c/2400c4b05d58834b994500a9eec90a37db44187c
git.kernel.org/stable/c/5c3ae5f6c7... WEB
https://git.kernel.org/stable/c/5c3ae5f6c7c6de73ea9b6a75154fe4ed343e1bac
git.kernel.org/stable/c/67d6b00a54... WEB
https://git.kernel.org/stable/c/67d6b00a54446c008f52cf70fc0c2ad0c712f85d
git.kernel.org/stable/c/9092e15def... WEB
https://git.kernel.org/stable/c/9092e15defbe6c7bc241c306093ca9d358a578e7
git.kernel.org/stable/c/b3d8354078... WEB
https://git.kernel.org/stable/c/b3d835407846134b0d54637c0281b39bebef831d
git.kernel.org/stable/c/f7f45ceb85... WEB
https://git.kernel.org/stable/c/f7f45ceb855d9ba1cba594fb3f383255f7013fad
git.kernel.org/stable/c/fb080b6f54... WEB
https://git.kernel.org/stable/c/fb080b6f54835d5d4d11ce3122800e6f0f6689e6

Frequently Asked Questions

What is CVE-2026-72057?
CVE-2026-72057 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-662: Improper Synchronization.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-72057?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72057?
CVE-2026-72057 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
What CWE is associated with CVE-2026-72057?
CVE-2026-72057 is classified under CWE-662: Improper Synchronization (The product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.).
How can I check Maven dependencies for CVE-2026-72057?
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-r6mf-v83v-v392",
  "modified" : "2026-08-23T15:32:58Z",
  "published" : "2026-08-15T06:32:10Z",
  "aliases" : [ "CVE-2026-72057" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ct: preserve tc_skb_cb across defragmentation\n\ntcf_ct_handle_fragments() calls nf_ct_handle_fragments() without saving\nand restoring skb->cb. The defrag helper clears IPCB/IP6CB, which aliases\nthe tc_skb_cb/qdisc_skb_cb control buffer. Fragmented traffic through\nact_ct therefore loses qdisc metadata such as pkt_segs and can trigger\nWARN_ON_ONCE() in qdisc_pkt_segs() when panic_on_warn is enabled.\n\nSave and restore the full tc_skb_cb around nf_ct_handle_fragments(),\nmatching the pattern used by ovs_ct_handle_fragments().",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
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  "database_specific" : {
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    "severity" : "HIGH",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:15Z"
  }
}