CVE-2026-80823: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vwx2-rh9p-3f2w
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Advisory Summary

CVE-2026-80823 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-2026-80823 at a Glance

CVE Identifier CVE-2026-80823
GHSA Identifier GHSA-vwx2-rh9p-3f2w
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-2026-80823

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-2026-80823, 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: st21nfca: validate ATR_REQ length against the received frame st21nfca_tm_recv_atr_req() checks that the received ATR_REQ frame is at least ST21NFCA_ATR_REQ_MIN_SIZE and that the self-declared atr_req->length is at least sizeof(struct st21nfca_atr_req), but never checks that atr_req->length does not exceed the actual received length (skb->len). st21nfca_tm_send_atr_res() then trusts the declared length: gb_len = atr_req->length - sizeof(struct st21nfca_atr_req); ... memcpy(atr_res->gbi, atr_req->gbi, gb_len); so an RF peer that sends a short frame but sets atr_req->length larger than the frame makes gb_len exceed the general bytes actually present, and the memcpy reads out of bounds past the received skb. Those bytes are placed in the ATR_RES and sent back to the peer (kernel-memory disclosure to a proximity attacker); a larger declared length is an out-of-bounds read (DoS). Reject frames whose declared length exceeds the received length. The adjacent nfc_tm_activated() path in the same function already derives its general-bytes length from skb->len rather than the declared field. Found by 0sec (https://0sec.ai) using automated source analysis; the missing bound is evident from source. Compile-tested.

References

NVD — CVE-2026-80823 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80823
git.kernel.org/stable/c/0f344944c5... WEB
https://git.kernel.org/stable/c/0f344944c506b4f02d2b098489f7268b438c369e
git.kernel.org/stable/c/2c1ad291f4... WEB
https://git.kernel.org/stable/c/2c1ad291f4cdc357f9527b688c6fda9c6ffa7890
git.kernel.org/stable/c/304f5b414f... WEB
https://git.kernel.org/stable/c/304f5b414f4051d324b8c4a3ab0e79f7dc7e150e
git.kernel.org/stable/c/5cdcca5d62... WEB
https://git.kernel.org/stable/c/5cdcca5d62a66eda6b774110a44cba67bc1a8d1d
git.kernel.org/stable/c/785df00bb3... WEB
https://git.kernel.org/stable/c/785df00bb3ae3206674a43284eb06dac575b5c64
git.kernel.org/stable/c/9635507fe8... WEB
https://git.kernel.org/stable/c/9635507fe82949e429b3cd938876a9917125b151
git.kernel.org/stable/c/bfcca5f42c... WEB
https://git.kernel.org/stable/c/bfcca5f42c9aa4eadef1e5fe7bb23783d7fcc96d
git.kernel.org/stable/c/dd26d30f40... WEB
https://git.kernel.org/stable/c/dd26d30f40c43ad9cfe2f25c6ea0ead1dd51d5aa
git.kernel.org/stable/c/f33cecf690... WEB
https://git.kernel.org/stable/c/f33cecf69095c43be88567fef92b180b858f7369

Frequently Asked Questions

What is CVE-2026-80823?
CVE-2026-80823 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-2026-80823?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80823?
CVE-2026-80823 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80823?
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-vwx2-rh9p-3f2w",
  "modified" : "2026-09-04T18:31:28Z",
  "published" : "2026-09-04T18:31:27Z",
  "aliases" : [ "CVE-2026-80823" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: st21nfca: validate ATR_REQ length against the received frame\n\nst21nfca_tm_recv_atr_req() checks that the received ATR_REQ frame is at\nleast ST21NFCA_ATR_REQ_MIN_SIZE and that the self-declared atr_req->length\nis at least sizeof(struct st21nfca_atr_req), but never checks that\natr_req->length does not exceed the actual received length (skb->len).\n\nst21nfca_tm_send_atr_res() then trusts the declared length:\n\n\tgb_len = atr_req->length - sizeof(struct st21nfca_atr_req);\n\t...\n\tmemcpy(atr_res->gbi, atr_req->gbi, gb_len);\n\nso an RF peer that sends a short frame but sets atr_req->length larger\nthan the frame makes gb_len exceed the general bytes actually present,\nand the memcpy reads out of bounds past the received skb. Those bytes are\nplaced in the ATR_RES and sent back to the peer (kernel-memory disclosure\nto a proximity attacker); a larger declared length is an out-of-bounds\nread (DoS).\n\nReject frames whose declared length exceeds the received length. The\nadjacent nfc_tm_activated() path in the same function already derives its\ngeneral-bytes length from skb->len rather than the declared field.\n\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80823"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0f344944c506b4f02d2b098489f7268b438c369e"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/785df00bb3ae3206674a43284eb06dac575b5c64"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bfcca5f42c9aa4eadef1e5fe7bb23783d7fcc96d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dd26d30f40c43ad9cfe2f25c6ea0ead1dd51d5aa"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f33cecf69095c43be88567fef92b180b858f7369"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:10Z"
  }
}