CVE-2026-111441: Software Security Vulnerability Vulnerability

Q: What is CVE-2026-111441?

CVE-2026-111441 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-122: Heap-based Buffer Overflow.

Q: Which Software versions are affected?

Affected versions include releases prior to current release patches.

Q: What version fixes CVE-2026-111441?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Q: What is the CVSS score of CVE-2026-111441?

CVE-2026-111441 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Q: What CWE is associated with CVE-2026-111441?

CVE-2026-111441 is classified under CWE-122: Heap-based Buffer Overflow (A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().).

Q: How can I check Maven dependencies for CVE-2026-111441?

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.

HIGH

Advisory Identifier: GHSA-8rj5-vp35-h5mx

CVSS 8.1

CWE-122

Published 2026-10-19

Advisory Summary

CVE-2026-111441 is a HIGH (CVSS 8.1) security vulnerability vulnerability (CWE-122: Heap-based Buffer Overflow) affecting Software libraries in the Maven ecosystem. The weakness occurs when a heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().. Remediation is available in the latest vendor maintenance releases.

CVE-2026-111441 at a Glance

CVE Identifier CVE-2026-111441

GHSA Identifier GHSA-8rj5-vp35-h5mx

Severity HIGH

CVSS v3.1 Base Score 8.1

CWE Classification CWE-122: Heap-based Buffer Overflow

Affected Product Software

Package Ecosystem Maven

Published Date 2026-10-19

Last Updated 2026-10-19

Security Impact

CVSS: 8.1

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:N/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 None (C:N)

Integrity High (I:H)

Availability High (A:H)

How to Fix CVE-2026-111441

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-2026-111441, 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-122: Heap-based Buffer Overflow, where a heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). 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

在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s() 目标大小写成 lenUsed 而非实际分配的 lenTotal，导致安全拷贝无法拦截越界写。hll_in()、hll_print()、hll_cardinality() 等 SQL 入口会走同一解包路径。因此，普通数据库连接用户只需构造 lenTotal 小于 lenUsed 的畸形 packed HLL（例如经 ::hll 进入 hll_in()），即可触发服务端堆越界写，存在内存破坏风险。此问题随 packed HLL 解包函数 HllObjectUnpack() 进入代码，v2.1.0 起即存在。受影响版本包括 2.1.0、3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS 版本修复，通过在 HllObjectUnpack() 中补齐 lenUsed <= lenTotal 校验，并将 memcpy_s() 的目标大小改为实际分配的 lenTotal。修复 PR 见 https://gitcode.com/opengauss/openGauss-server/pull/9380 。

References

NVD — CVE-2026-111441 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-111441

gitcode.com/opengauss/opengauss... WEB

https://gitcode.com/opengauss/openGauss-server/pull/9380

Frequently Asked Questions

What is CVE-2026-111441?

CVE-2026-111441 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-122: Heap-based Buffer Overflow.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-111441?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2026-111441?

CVE-2026-111441 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

What CWE is associated with CVE-2026-111441?

CVE-2026-111441 is classified under CWE-122: Heap-based Buffer Overflow (A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().).

How can I check Maven dependencies for CVE-2026-111441?

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-8rj5-vp35-h5mx",
  "modified" : "2026-10-19T03:31:05Z",
  "published" : "2026-10-19T03:31:05Z",
  "aliases" : [ "CVE-2026-111441" ],
  "details" : "在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s() 目标大小写成 lenUsed 而非实际分配的 lenTotal，导致安全拷贝无法拦截越界写。hll_in()、hll_print()、hll_cardinality() 等 SQL 入口会走同一解包路径。因此，普通数据库连接用户只需构造 lenTotal 小于 lenUsed 的畸形 packed HLL（例如经 ::hll 进入 hll_in()），即可触发服务端堆越界写，存在内存破坏风险。此问题随 packed HLL 解包函数 HllObjectUnpack() 进入代码，v2.1.0 起即存在。受影响版本包括 2.1.0、3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS 版本修复，通过在 HllObjectUnpack() 中补齐 lenUsed <= lenTotal 校验，并将 memcpy_s() 的目标大小改为实际分配的 lenTotal。修复 PR 见 https://gitcode.com/opengauss/openGauss-server/pull/9380 。",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-111441"
  }, {
    "type" : "WEB",
    "url" : "https://gitcode.com/opengauss/openGauss-server/pull/9380"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-122" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-19T03:16:58Z"
  }
}

CVSS V3

8.1 HIGH