CVE-2026-80798: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-p65w-76hh-qj57
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Advisory Summary

CVE-2026-80798 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-2026-80798 at a Glance

CVE Identifier CVE-2026-80798
GHSA Identifier GHSA-p65w-76hh-qj57
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-2026-80798

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-2026-80798, 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: reject PDUs shorter than the LLCP header Every LLCP PDU begins with a two-byte header (DSAP/SSAP + PTYPE), but the receive path never checked that a frame is at least LLCP_HEADER_SIZE bytes before parsing it. nfc_llcp_rx_skb() reads the header via nfc_llcp_ptype()/nfc_llcp_dsap()/ nfc_llcp_ssap(), which dereference pdu->data[0] and pdu->data[1], and a CONNECT or CC PDU then computes tlv_array_len = skb->len - LLCP_HEADER_SIZE; as a size_t and hands it to the TLV walk. When the frame is shorter than the header the subtraction wraps to a huge value and the walk runs far past the buffer, an out-of-bounds read. A nearby NFC device can reach this without authentication; LLCP link activation happens automatically after NFC-DEP. Guard the common receive choke point __nfc_llcp_recv(), shared by both the target (nfc_llcp_data_received()) and initiator (nfc_llcp_recv()) paths, so a short skb is dropped before the rx_work worker parses it. Use pskb_may_pull() rather than a skb->len test so the two header bytes are guaranteed to sit in the skb linear area even for a non-linear skb, matching how the sibling NCI and HCI receive paths validate their headers. Reproduced with a KFENCE out-of-bounds read via /dev/virtual_nci on linux-next. Found by 0sec automated security-research tooling (https://0sec.ai).

References

NVD — CVE-2026-80798 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80798
git.kernel.org/stable/c/3793d768b4... WEB
https://git.kernel.org/stable/c/3793d768b40f38bb97265dd5b9a8b8655c4e1b1d
git.kernel.org/stable/c/95674f506c... WEB
https://git.kernel.org/stable/c/95674f506c6376d6722a23144c9acd26609771ed
git.kernel.org/stable/c/a7b9b449f5... WEB
https://git.kernel.org/stable/c/a7b9b449f5a5132221fff6adc11a9431ab8cd914
git.kernel.org/stable/c/ae5f20f584... WEB
https://git.kernel.org/stable/c/ae5f20f5842f440b72d030e3a34fe182dd8eae42
git.kernel.org/stable/c/d3d9024339... WEB
https://git.kernel.org/stable/c/d3d90243393c48146911c67fd3792b549d21d9e6
git.kernel.org/stable/c/e6ec76a68d... WEB
https://git.kernel.org/stable/c/e6ec76a68dce04884dfeccfe5a5f0e9f67c0ec82
git.kernel.org/stable/c/e969e98410... WEB
https://git.kernel.org/stable/c/e969e98410051b1ef8cc318bfe0c7e3f24ec766d
git.kernel.org/stable/c/eab47618e2... WEB
https://git.kernel.org/stable/c/eab47618e282602197db287ecbd1b09d356a2515
git.kernel.org/stable/c/f36cffea24... WEB
https://git.kernel.org/stable/c/f36cffea24bf3e2cc29a00d4b51dbcadc087d810

Frequently Asked Questions

What is CVE-2026-80798?
CVE-2026-80798 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-2026-80798?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80798?
CVE-2026-80798 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80798?
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-p65w-76hh-qj57",
  "modified" : "2026-09-04T18:31:26Z",
  "published" : "2026-09-04T18:31:26Z",
  "aliases" : [ "CVE-2026-80798" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: reject PDUs shorter than the LLCP header\n\nEvery LLCP PDU begins with a two-byte header (DSAP/SSAP + PTYPE), but the\nreceive path never checked that a frame is at least LLCP_HEADER_SIZE bytes\nbefore parsing it.\n\nnfc_llcp_rx_skb() reads the header via nfc_llcp_ptype()/nfc_llcp_dsap()/\nnfc_llcp_ssap(), which dereference pdu->data[0] and pdu->data[1], and a\nCONNECT or CC PDU then computes\n\n\ttlv_array_len = skb->len - LLCP_HEADER_SIZE;\n\nas a size_t and hands it to the TLV walk. When the frame is shorter than\nthe header the subtraction wraps to a huge value and the walk runs far\npast the buffer, an out-of-bounds read.\n\nA nearby NFC device can reach this without authentication; LLCP link\nactivation happens automatically after NFC-DEP.\n\nGuard the common receive choke point __nfc_llcp_recv(), shared by both the\ntarget (nfc_llcp_data_received()) and initiator (nfc_llcp_recv()) paths, so\na short skb is dropped before the rx_work worker parses it. Use\npskb_may_pull() rather than a skb->len test so the two header bytes are\nguaranteed to sit in the skb linear area even for a non-linear skb,\nmatching how the sibling NCI and HCI receive paths validate their headers.\n\nReproduced with a KFENCE out-of-bounds read via /dev/virtual_nci on\nlinux-next.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80798"
  }, {
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    "url" : "https://git.kernel.org/stable/c/3793d768b40f38bb97265dd5b9a8b8655c4e1b1d"
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    "url" : "https://git.kernel.org/stable/c/95674f506c6376d6722a23144c9acd26609771ed"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a7b9b449f5a5132221fff6adc11a9431ab8cd914"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ae5f20f5842f440b72d030e3a34fe182dd8eae42"
  }, {
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    "url" : "https://git.kernel.org/stable/c/e6ec76a68dce04884dfeccfe5a5f0e9f67c0ec82"
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    "url" : "https://git.kernel.org/stable/c/e969e98410051b1ef8cc318bfe0c7e3f24ec766d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/eab47618e282602197db287ecbd1b09d356a2515"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f36cffea24bf3e2cc29a00d4b51dbcadc087d810"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:06Z"
  }
}