CVE-2026-80931: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-3cwq-59j3-h9hj
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CVSS 7.8
Published
Advisory Summary

CVE-2026-80931 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80931 at a Glance

CVE Identifier CVE-2026-80931
GHSA Identifier GHSA-3cwq-59j3-h9hj
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)
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-2026-80931

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-2026-80931, 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: w1: ds28e17: reject an oversize length on an I2C block read w1_f19_i2c_master_transfer() is the master_xfer for the DS28E17 1-Wire to I2C bridge. On an I2C_M_RECV_LEN read, it takes the length from the device. The downstream slave puts a length byte in buf[0]. The driver then reads that many bytes into buf[1] with w1_f19_i2c_read(). buf[0] is controlled by the device and can be 0 to 255. w1_f19_i2c_read() only rejects a zero count. The caller buffer is I2C_SMBUS_BLOCK_MAX + 2, so 34 bytes. A length above 32 makes the read run past it, up to about 222 bytes out of bounds. The SMBus core does check buf[0] against I2C_SMBUS_BLOCK_MAX. That check runs after master_xfer returns. By then the write is already done. i2c-algo-bit rejects an oversize length before it copies, and returns -EPROTO. Reject a length above I2C_SMBUS_BLOCK_MAX at both RECV_LEN sites, the same way i2c-algo-bit does.

References

NVD — CVE-2026-80931 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80931
git.kernel.org/stable/c/0f6496b34c... WEB
https://git.kernel.org/stable/c/0f6496b34cc2919420f303b2aabdd9f71e084b56
git.kernel.org/stable/c/169ae5e65e... WEB
https://git.kernel.org/stable/c/169ae5e65e5aaf213b6a578f6478a9fd2e523606
git.kernel.org/stable/c/1d08877fc3... WEB
https://git.kernel.org/stable/c/1d08877fc37e90945df38d255715bd1d6c052d46
git.kernel.org/stable/c/6df05f630c... WEB
https://git.kernel.org/stable/c/6df05f630c84a109736642362e452089886f9974
git.kernel.org/stable/c/ae0c79a852... WEB
https://git.kernel.org/stable/c/ae0c79a8527044e54d81fd5a3b49ce6177633758
git.kernel.org/stable/c/b30c021c60... WEB
https://git.kernel.org/stable/c/b30c021c6073559ea6851b522d8a17a524a27b4a
git.kernel.org/stable/c/bf76d61e11... WEB
https://git.kernel.org/stable/c/bf76d61e118b7044600a65775a3bf8adc2c6823d
git.kernel.org/stable/c/cb55c5da98... WEB
https://git.kernel.org/stable/c/cb55c5da9828f77db2a2701316949d4de1e9b773

Frequently Asked Questions

What is CVE-2026-80931?
CVE-2026-80931 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-2026-80931?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80931?
CVE-2026-80931 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80931?
CVE-2026-80931 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80931?
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-3cwq-59j3-h9hj",
  "modified" : "2026-09-14T15:32:19Z",
  "published" : "2026-09-11T21:31:19Z",
  "aliases" : [ "CVE-2026-80931" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nw1: ds28e17: reject an oversize length on an I2C block read\n\nw1_f19_i2c_master_transfer() is the master_xfer for the DS28E17 1-Wire\nto I2C bridge. On an I2C_M_RECV_LEN read, it takes the length from the\ndevice. The downstream slave puts a length byte in buf[0]. The driver\nthen reads that many bytes into buf[1] with w1_f19_i2c_read().\n\nbuf[0] is controlled by the device and can be 0 to 255.\nw1_f19_i2c_read() only rejects a zero count. The caller buffer is\nI2C_SMBUS_BLOCK_MAX + 2, so 34 bytes. A length above 32 makes the read\nrun past it, up to about 222 bytes out of bounds.\n\nThe SMBus core does check buf[0] against I2C_SMBUS_BLOCK_MAX. That\ncheck runs after master_xfer returns. By then the write is already\ndone. i2c-algo-bit rejects an oversize length before it copies, and\nreturns -EPROTO.\n\nReject a length above I2C_SMBUS_BLOCK_MAX at both RECV_LEN sites, the\nsame way i2c-algo-bit does.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/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-2026-80931"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0f6496b34cc2919420f303b2aabdd9f71e084b56"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/169ae5e65e5aaf213b6a578f6478a9fd2e523606"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1d08877fc37e90945df38d255715bd1d6c052d46"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6df05f630c84a109736642362e452089886f9974"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ae0c79a8527044e54d81fd5a3b49ce6177633758"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b30c021c6073559ea6851b522d8a17a524a27b4a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bf76d61e118b7044600a65775a3bf8adc2c6823d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cb55c5da9828f77db2a2701316949d4de1e9b773"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:18:56Z"
  }
}