CVE-2026-72382: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-xrhm-hwvc-w6q3
Share
CVSS 8.8
Published
Advisory Summary

CVE-2026-72382 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72382 at a Glance

CVE Identifier CVE-2026-72382
GHSA Identifier GHSA-xrhm-hwvc-w6q3
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Network (AV:N)
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-2026-72382

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-2026-72382, 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: ksmbd: reject undersized DACLs before parsing ACEs parse_dacl() limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression subtracts sizeof(struct smb_acl). Because sizeof() is unsigned, a DACL size smaller than the ACL header underflows to a large size_t. A malicious client can reach this with: SMB2_SET_INFO (InfoType=SMB2_O_INFO_SECURITY) -> smb2_set_info_sec() -> set_info_sec() -> parse_sec_desc() -> parse_dacl() -> init_acl_state(..., 0xffff) -> init_acl_state(..., 0xffff) -> kmalloc_objs(..., 0xffff) Thus a malformed security descriptor can make num_aces pass the guard and drive large temporary ACL state and pointer-array allocations. Reject DACLs smaller than struct smb_acl before doing the subtraction, so the ACE count check cannot be bypassed by the underflow.

References

NVD — CVE-2026-72382 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72382
git.kernel.org/stable/c/15a9e9b8f7... WEB
https://git.kernel.org/stable/c/15a9e9b8f7f5d7f380ae54c6f5bcbc0bdcb0f3cd
git.kernel.org/stable/c/16fb65ec15... WEB
https://git.kernel.org/stable/c/16fb65ec15fe7c90f50a2115854bfd9a032d4023
git.kernel.org/stable/c/282847c0cf... WEB
https://git.kernel.org/stable/c/282847c0cf22f2e961155ac8e42f6eeab7e16049
git.kernel.org/stable/c/60908f7ebc... WEB
https://git.kernel.org/stable/c/60908f7ebcd9b6cde74ad5711fab0f49c7970949
git.kernel.org/stable/c/d020e7f27b... WEB
https://git.kernel.org/stable/c/d020e7f27bf65eecd3805404702f716b2b6d9e73

Frequently Asked Questions

What is CVE-2026-72382?
CVE-2026-72382 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-2026-72382?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72382?
CVE-2026-72382 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72382?
CVE-2026-72382 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72382?
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-xrhm-hwvc-w6q3",
  "modified" : "2026-08-17T06:33:26Z",
  "published" : "2026-08-15T06:32:22Z",
  "aliases" : [ "CVE-2026-72382" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: reject undersized DACLs before parsing ACEs\n\nparse_dacl() limits the attacker-controlled ACE count by comparing it\nwith the number of minimal ACEs that fit in the DACL size. The DACL size\nfield is 16 bits, but the expression subtracts sizeof(struct smb_acl).\nBecause sizeof() is unsigned, a DACL size smaller than the ACL header\nunderflows to a large size_t.\n\nA malicious client can reach this with:\n\nSMB2_SET_INFO (InfoType=SMB2_O_INFO_SECURITY)\n  -> smb2_set_info_sec()\n  -> set_info_sec()\n  -> parse_sec_desc()\n  -> parse_dacl()\n     -> init_acl_state(..., 0xffff)\n     -> init_acl_state(..., 0xffff)\n     -> kmalloc_objs(..., 0xffff)\n\nThus a malformed security descriptor can make num_aces pass the guard\nand drive large temporary ACL state and pointer-array allocations.\n\nReject DACLs smaller than struct smb_acl before doing the subtraction,\nso the ACE count check cannot be bypassed by the underflow.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/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-2026-72382"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/15a9e9b8f7f5d7f380ae54c6f5bcbc0bdcb0f3cd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/16fb65ec15fe7c90f50a2115854bfd9a032d4023"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/282847c0cf22f2e961155ac8e42f6eeab7e16049"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/60908f7ebcd9b6cde74ad5711fab0f49c7970949"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d020e7f27bf65eecd3805404702f716b2b6d9e73"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:11Z"
  }
}