CVE-2026-31622: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-3r85-565g-4jhq
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CVSS 8.8
CWE-120
Published
Advisory Summary

CVE-2026-31622 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-31622 at a Glance

CVE Identifier CVE-2026-31622
GHSA Identifier GHSA-3r85-565g-4jhq
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2026-31622

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-2026-31622, 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 CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), where the product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. 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: digital: Bounds check NFC-A cascade depth in SDD response handler The NFC-A anti-collision cascade in digital_in_recv_sdd_res() appends 3 or 4 bytes to target->nfcid1 on each round, but the number of cascade rounds is controlled entirely by the peer device. The peer sets the cascade tag in the SDD_RES (deciding 3 vs 4 bytes) and the cascade-incomplete bit in the SEL_RES (deciding whether another round follows). ISO 14443-3 limits NFC-A to three cascade levels and target->nfcid1 is sized accordingly (NFC_NFCID1_MAXSIZE = 10), but nothing in the driver actually enforces this. This means a malicious peer can keep the cascade running, writing past the heap-allocated nfc_target with each round. Fix this by rejecting the response when the accumulated UID would exceed the buffer. Commit e329e71013c9 ("NFC: nci: Bounds check struct nfc_target arrays") fixed similar missing checks against the same field on the NCI path.

References

NVD — CVE-2026-31622 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31622
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/1bec5698b5... WEB
https://git.kernel.org/stable/c/1bec5698b55aa2be5c3b983dba657c01d0fd3dbc
git.kernel.org/stable/c/20663102c1... WEB
https://git.kernel.org/stable/c/20663102c14566e900e1d2f679e30b7f1694f387
git.kernel.org/stable/c/2819f34e08... WEB
https://git.kernel.org/stable/c/2819f34e08bdffb6f06a51c67948ec5737fb166a
git.kernel.org/stable/c/46ce8be2ce... WEB
https://git.kernel.org/stable/c/46ce8be2ced389bccd84bcc04a12cf2f4d0c22d1
git.kernel.org/stable/c/5a59bf70c3... WEB
https://git.kernel.org/stable/c/5a59bf70c38ee1eb4be03bab830bbc3a6f0bd1f1
git.kernel.org/stable/c/8d9d9bf356... WEB
https://git.kernel.org/stable/c/8d9d9bf3565271ca7ab9c716a94e87296177e7ba
git.kernel.org/stable/c/9ba6bb09e0... WEB
https://git.kernel.org/stable/c/9ba6bb09e00b922d902f684f575779e5433fe6e3
git.kernel.org/stable/c/cc024a3de2... WEB
https://git.kernel.org/stable/c/cc024a3de265ef6c58957f4990eccb9f806208cb
git.kernel.org/stable/c/f83b399aa0... WEB
https://git.kernel.org/stable/c/f83b399aa05a0712e3b1569a30d3d90b3533d2ef

Frequently Asked Questions

What is CVE-2026-31622?
CVE-2026-31622 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-31622?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-31622?
CVE-2026-31622 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-31622?
CVE-2026-31622 is classified under CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.).
How can I check Maven dependencies for CVE-2026-31622?
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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  "id" : "GHSA-3r85-565g-4jhq",
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  "published" : "2026-04-24T15:32:35Z",
  "aliases" : [ "CVE-2026-31622" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: digital: Bounds check NFC-A cascade depth in SDD response handler\n\nThe NFC-A anti-collision cascade in digital_in_recv_sdd_res() appends 3\nor 4 bytes to target->nfcid1 on each round, but the number of cascade\nrounds is controlled entirely by the peer device.  The peer sets the\ncascade tag in the SDD_RES (deciding 3 vs 4 bytes) and the\ncascade-incomplete bit in the SEL_RES (deciding whether another round\nfollows).\n\nISO 14443-3 limits NFC-A to three cascade levels and target->nfcid1 is\nsized accordingly (NFC_NFCID1_MAXSIZE = 10), but nothing in the driver\nactually enforces this.  This means a malicious peer can keep the\ncascade running, writing past the heap-allocated nfc_target with each\nround.\n\nFix this by rejecting the response when the accumulated UID would exceed\nthe buffer.\n\nCommit e329e71013c9 (\"NFC: nci: Bounds check struct nfc_target arrays\")\nfixed similar missing checks against the same field on the NCI path.",
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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  "database_specific" : {
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}