CVE-2026-80796: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-x2c2-6crc-q5ch
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Advisory Summary

CVE-2026-80796 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-2026-80796 at a Glance

CVE Identifier CVE-2026-80796
GHSA Identifier GHSA-x2c2-6crc-q5ch
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-2026-80796

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-2026-80796, 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: nci: add data_len bound checks to activation parameter extractors nci_extract_activation_params_iso_dep() and nci_extract_activation_params_nfc_dep() read an inner length byte from the NCI RF_INTF_ACTIVATED_NTF payload and use it to memcpy() into fixed kernel buffers, but neither function receives the caller-validated activation_params_len. A crafted NCI notification with activation_params_len=1 and an inner length byte of up to 20 (NFC-A) or 50 (NFC-B) causes memcpy() to read that many bytes past the one valid byte in the activation params region -- a slab out-of-bounds read of kernel memory adjacent to the NCI skb. The sibling nci_extract_rf_params_*() family was given equivalent protection by commit 571dcbeb8e63 ("net: nfc: nci: Fix parameter validation for packet data"), but the two activation parameter extractors were not updated at that time. Add a data_len parameter to both functions, guard against an empty region before consuming the inner length byte, decrement the remaining count after consuming it, and clamp the copy length to what is actually available. Update both call sites to pass ntf.activation_params_len, which is already validated against the skb at ntf.c:801.

References

NVD — CVE-2026-80796 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80796
git.kernel.org/stable/c/0428fa2c22... WEB
https://git.kernel.org/stable/c/0428fa2c22e2ba0cff766d3b80d461e149102045
git.kernel.org/stable/c/04e51353cb... WEB
https://git.kernel.org/stable/c/04e51353cb9fa321caaeeed8331d4cd041fbaca7
git.kernel.org/stable/c/1168484fe2... WEB
https://git.kernel.org/stable/c/1168484fe2b3828bf24a46f3c42a8719fade679b
git.kernel.org/stable/c/9620a91f8d... WEB
https://git.kernel.org/stable/c/9620a91f8d643b680f417a435db399a04d1e06d8
git.kernel.org/stable/c/9b01f5af0d... WEB
https://git.kernel.org/stable/c/9b01f5af0dc59263b59391b148bc78d83c0354a9
git.kernel.org/stable/c/be311c0cfe... WEB
https://git.kernel.org/stable/c/be311c0cfeadfbe815ea22d2914a98d06e3fab0e
git.kernel.org/stable/c/cf9d44be50... WEB
https://git.kernel.org/stable/c/cf9d44be50b9074a5abdc301b4a3ba3e283591df
git.kernel.org/stable/c/e25b44bd8b... WEB
https://git.kernel.org/stable/c/e25b44bd8b8cc666b49a3fe0ef547e64d5b1e300
git.kernel.org/stable/c/f5c534b53f... WEB
https://git.kernel.org/stable/c/f5c534b53f8c424a8e7633c9b585475c4bf4ee18

Frequently Asked Questions

What is CVE-2026-80796?
CVE-2026-80796 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-2026-80796?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80796?
CVE-2026-80796 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80796?
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-x2c2-6crc-q5ch",
  "modified" : "2026-09-04T18:31:26Z",
  "published" : "2026-09-04T18:31:26Z",
  "aliases" : [ "CVE-2026-80796" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: add data_len bound checks to activation parameter extractors\n\nnci_extract_activation_params_iso_dep() and\nnci_extract_activation_params_nfc_dep() read an inner length byte from\nthe NCI RF_INTF_ACTIVATED_NTF payload and use it to memcpy() into fixed\nkernel buffers, but neither function receives the caller-validated\nactivation_params_len.  A crafted NCI notification with\nactivation_params_len=1 and an inner length byte of up to 20 (NFC-A) or\n50 (NFC-B) causes memcpy() to read that many bytes past the one valid\nbyte in the activation params region -- a slab out-of-bounds read of\nkernel memory adjacent to the NCI skb.\n\nThe sibling nci_extract_rf_params_*() family was given equivalent\nprotection by commit 571dcbeb8e63 (\"net: nfc: nci: Fix parameter\nvalidation for packet data\"), but the two activation parameter\nextractors were not updated at that time.\n\nAdd a data_len parameter to both functions, guard against an empty\nregion before consuming the inner length byte, decrement the remaining\ncount after consuming it, and clamp the copy length to what is actually\navailable.  Update both call sites to pass ntf.activation_params_len,\nwhich is already validated against the skb at ntf.c:801.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80796"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0428fa2c22e2ba0cff766d3b80d461e149102045"
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    "type" : "WEB",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e25b44bd8b8cc666b49a3fe0ef547e64d5b1e300"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f5c534b53f8c424a8e7633c9b585475c4bf4ee18"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:06Z"
  }
}