CVE-2026-81012: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-9p9c-f6r5-6rgq
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CVSS 8.4
Published
Advisory Summary

CVE-2026-81012 is a HIGH (CVSS 8.4) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-81012 at a Glance

CVE Identifier CVE-2026-81012
GHSA Identifier GHSA-9p9c-f6r5-6rgq
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

Attack Vector Local (AV:L)
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-2026-81012

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-2026-81012, 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: platform/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer() hp_get_string_from_buffer() clamps the converted string length against the destination buffer size with "size > dst_size", so when the converted length is exactly equal to dst_size, conv_dst_size is left at dst_size and the unconditional NUL terminator write dst[conv_dst_size] = 0; lands one byte past the destination buffer. This is the same shape of bug as the previously fixed off-by-one in hp_convert_hexstr_to_str(): the buffer is sized correctly for the content, but the terminator write is never checked against that size. Fix by changing the comparison to ">=" so conv_dst_size is always left with room for the terminator. All fixed-size destinations that reach this function (path[512], current_value[512], current_password/current_value[64], and the per-entry buffers in encodings[][512] and prerequisites[][512]) are affected.

References

NVD — CVE-2026-81012 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81012
git.kernel.org/stable/c/3cc772d015... WEB
https://git.kernel.org/stable/c/3cc772d0154799961f032e5a992d4a50523e291a
git.kernel.org/stable/c/8f5aa1506c... WEB
https://git.kernel.org/stable/c/8f5aa1506cdddea6b33584c2445b9ce99eeddb64
git.kernel.org/stable/c/b15b334fbc... WEB
https://git.kernel.org/stable/c/b15b334fbc3c0c46440f8a892ebf62164fca23d6
git.kernel.org/stable/c/dc03f05e41... WEB
https://git.kernel.org/stable/c/dc03f05e419f3460342fb7564884f244622634b6
git.kernel.org/stable/c/ddf98cf335... WEB
https://git.kernel.org/stable/c/ddf98cf33529714b3ba1a158afb1db5b0f759a1a

Frequently Asked Questions

What is CVE-2026-81012?
CVE-2026-81012 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-2026-81012?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-81012?
CVE-2026-81012 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-81012?
CVE-2026-81012 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-81012?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-9p9c-f6r5-6rgq",
  "modified" : "2026-09-14T15:32:23Z",
  "published" : "2026-09-11T21:31:24Z",
  "aliases" : [ "CVE-2026-81012" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer()\n\nhp_get_string_from_buffer() clamps the converted string length against\nthe destination buffer size with \"size > dst_size\", so when the\nconverted length is exactly equal to dst_size, conv_dst_size is left\nat dst_size and the unconditional NUL terminator write\n\n\tdst[conv_dst_size] = 0;\n\nlands one byte past the destination buffer. This is the same shape of\nbug as the previously fixed off-by-one in hp_convert_hexstr_to_str():\nthe buffer is sized correctly for the content, but the terminator\nwrite is never checked against that size.\n\nFix by changing the comparison to \">=\" so conv_dst_size is always left\nwith room for the terminator.\n\nAll fixed-size destinations that reach this function (path[512],\ncurrent_value[512], current_password/current_value[64], and the\nper-entry buffers in encodings[][512] and prerequisites[][512]) are\naffected.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/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-2026-81012"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3cc772d0154799961f032e5a992d4a50523e291a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8f5aa1506cdddea6b33584c2445b9ce99eeddb64"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dc03f05e419f3460342fb7564884f244622634b6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ddf98cf33529714b3ba1a158afb1db5b0f759a1a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:10Z"
  }
}