CVE-2026-110714: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-f7hf-m5cf-j6wv
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CVSS 6.5
CWE-191
Published
Advisory Summary

CVE-2026-110714 is a HIGH (CVSS 6.5) security vulnerability vulnerability (CWE-191: Integer Underflow (Wrap or Wraparound)) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-110714 at a Glance

CVE Identifier CVE-2026-110714
GHSA Identifier GHSA-f7hf-m5cf-j6wv
Severity HIGH
CVSS v3.1 Base Score 6.5
CWE Classification CWE-191: Integer Underflow (Wrap or Wraparound)
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:R/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-110714

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-2026-110714, 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-191: Integer Underflow (Wrap or Wraparound), where the product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. 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

libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted security descriptors. Attackers controlling a server or intercepting unsigned sessions can send an AclSize below 8 in a QUERY_INFO reply, bypassing ACE bounds checks and crashing the client.

References

NVD — CVE-2026-110714 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110714
Security Fix Commit FIX COMMIT
https://github.com/sahlberg/libsmb2/commit/523abe20be3207011a936db47f1d3bab79c05450
Software Source Repository REPOSITORY
https://github.com/sahlberg/libsmb2
Software Source Repository REPOSITORY
https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-security-descriptor.c#L266
hackmd.io/@haind-pwn/libsmb2-... WEB
https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read
www.vulncheck.com/advisories/libsmb2-... WEB
https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-decode-acl-integer-underflow

Frequently Asked Questions

What is CVE-2026-110714?
CVE-2026-110714 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-191: Integer Underflow (Wrap or Wraparound).
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-110714?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-110714?
CVE-2026-110714 has a CVSS v3.1 base score of 6.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-110714?
CVE-2026-110714 is classified under CWE-191: Integer Underflow (Wrap or Wraparound) (The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.).
How can I check Maven dependencies for CVE-2026-110714?
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-f7hf-m5cf-j6wv",
  "modified" : "2026-10-14T18:32:18Z",
  "published" : "2026-10-14T18:32:17Z",
  "aliases" : [ "CVE-2026-110714" ],
  "details" : "libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted security descriptors. Attackers controlling a server or intercepting unsigned sessions can send an AclSize below 8 in a QUERY_INFO reply, bypassing ACE bounds checks and crashing the client.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-110714"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sahlberg/libsmb2/commit/523abe20be3207011a936db47f1d3bab79c05450"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sahlberg/libsmb2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-security-descriptor.c#L266"
  }, {
    "type" : "WEB",
    "url" : "https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-decode-acl-integer-underflow"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-191" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-14T16:17:43Z"
  }
}