CVE-2026-80799: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-2vfp-4qhq-6rfc
Share
Published
Advisory Summary

CVE-2026-80799 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80799 at a Glance

CVE Identifier CVE-2026-80799
GHSA Identifier GHSA-2vfp-4qhq-6rfc
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80799

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-2026-80799, 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: nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers nfc_llcp_parse_gb_tlv() and nfc_llcp_parse_connection_tlv() contain three related bugs in their TLV parsing loops: 1. 'offset' is declared u8 but tlv_array_len is u16. When TLV data advances offset past 255 it silently wraps to zero, causing infinite loops or double-processing of buffer data. 2. Before reading tlv[0] (type) and tlv[1] (length) there is no check that offset+2 <= tlv_array_len. A truncated TLV causes an OOB read of one byte past the buffer end. 3. After reading the length field, the value bytes are accessed without checking offset+2+length <= tlv_array_len. A crafted length=0xFF on a short buffer causes up to 255 bytes of OOB read past the buffer end. Both functions are reachable without authentication via nfc_llcp_set_remote_gb() which feeds remote LLCP general bytes directly into nfc_llcp_parse_gb_tlv() with no additional validation. Fix all three issues by widening offset from u8 to u16 and adding bounds checks for both the TLV header and value field before each access.

References

NVD — CVE-2026-80799 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80799
git.kernel.org/stable/c/2c1456fe09... WEB
https://git.kernel.org/stable/c/2c1456fe09ab1a5a9fe1d8339ca6d509589b56e1
git.kernel.org/stable/c/2d239590d1... WEB
https://git.kernel.org/stable/c/2d239590d1845a706304833d40dd6d4fec20ad88
git.kernel.org/stable/c/382eaa7703... WEB
https://git.kernel.org/stable/c/382eaa770335acf4f16a5a55524500f2bb4207df
git.kernel.org/stable/c/78b20c8eea... WEB
https://git.kernel.org/stable/c/78b20c8eeacd2e44a2d8a4cb5316d3c521d90911
git.kernel.org/stable/c/7f6f3d087c... WEB
https://git.kernel.org/stable/c/7f6f3d087c67a4346189ef2c36481455bbc59a74
git.kernel.org/stable/c/875285a165... WEB
https://git.kernel.org/stable/c/875285a165fd3b402de2ab3be0deb355d6f4caf5
git.kernel.org/stable/c/9c47d66796... WEB
https://git.kernel.org/stable/c/9c47d667963542c3cf8e3007b7f10c0904d08238
git.kernel.org/stable/c/a209334ed9... WEB
https://git.kernel.org/stable/c/a209334ed929941b20810c17c3a507445b0a7c85
git.kernel.org/stable/c/e84cdfdc4a... WEB
https://git.kernel.org/stable/c/e84cdfdc4a6c88e8b751144458f2e04e24415a28

Frequently Asked Questions

What is CVE-2026-80799?
CVE-2026-80799 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-2026-80799?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80799?
CVE-2026-80799 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80799?
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-2vfp-4qhq-6rfc",
  "modified" : "2026-09-04T18:31:26Z",
  "published" : "2026-09-04T18:31:26Z",
  "aliases" : [ "CVE-2026-80799" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix OOB read and u8 offset wrap in TLV parsers\n\nnfc_llcp_parse_gb_tlv() and nfc_llcp_parse_connection_tlv() contain\nthree related bugs in their TLV parsing loops:\n\n1. 'offset' is declared u8 but tlv_array_len is u16. When TLV data\n   advances offset past 255 it silently wraps to zero, causing\n   infinite loops or double-processing of buffer data.\n\n2. Before reading tlv[0] (type) and tlv[1] (length) there is no\n   check that offset+2 <= tlv_array_len. A truncated TLV causes\n   an OOB read of one byte past the buffer end.\n\n3. After reading the length field, the value bytes are accessed\n   without checking offset+2+length <= tlv_array_len. A crafted\n   length=0xFF on a short buffer causes up to 255 bytes of OOB\n   read past the buffer end.\n\nBoth functions are reachable without authentication via\nnfc_llcp_set_remote_gb() which feeds remote LLCP general bytes\ndirectly into nfc_llcp_parse_gb_tlv() with no additional\nvalidation.\n\nFix all three issues by widening offset from u8 to u16 and adding\nbounds checks for both the TLV header and value field before each\naccess.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80799"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2c1456fe09ab1a5a9fe1d8339ca6d509589b56e1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2d239590d1845a706304833d40dd6d4fec20ad88"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/382eaa770335acf4f16a5a55524500f2bb4207df"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/78b20c8eeacd2e44a2d8a4cb5316d3c521d90911"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7f6f3d087c67a4346189ef2c36481455bbc59a74"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/875285a165fd3b402de2ab3be0deb355d6f4caf5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9c47d667963542c3cf8e3007b7f10c0904d08238"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a209334ed929941b20810c17c3a507445b0a7c85"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e84cdfdc4a6c88e8b751144458f2e04e24415a28"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:06Z"
  }
}