CVE-2026-72217: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-jffc-255g-3gq9
Share
CVSS 9.8
Published
Advisory Summary

CVE-2026-72217 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72217 at a Glance

CVE Identifier CVE-2026-72217
GHSA Identifier GHSA-jffc-255g-3gq9
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

Attack Vector Network (AV:N)
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-2026-72217

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-2026-72217, 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: SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing xdr_buf_to_bvec() writes a bio_vec into the caller's array before testing whether that slot is in range, and the head branch performs the store with no check at all. When the caller's budget is exactly used up, the next store lands one element past the end of the array. The overflow label returns count - 1, which masks the surplus store but cannot undo it. rq_bvec, the array passed by nfsd_vfs_write(), is allocated to exactly rq_maxpages entries with no slack. The OOB store can land in adjacent slab memory; the bv_len and bv_offset fields written there are derived from client-supplied RPC payload sizes. Move the in-range check ahead of the store in the head, page-loop, and tail branches. With the check at the top of each sequence, count is incremented only after a successful store, so the overflow label can return count directly.

References

NVD — CVE-2026-72217 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72217
git.kernel.org/stable/c/42f5b80dda... WEB
https://git.kernel.org/stable/c/42f5b80dda6b86e424054baf1475df686c403d5c
git.kernel.org/stable/c/4a1148f273... WEB
https://git.kernel.org/stable/c/4a1148f2739d5089c3ca8ae2e9d1053e219ab5df
git.kernel.org/stable/c/6029e711a8... WEB
https://git.kernel.org/stable/c/6029e711a818bf34d6c4b90cafee24f3afffa110
git.kernel.org/stable/c/69e18135e2... WEB
https://git.kernel.org/stable/c/69e18135e2a004a79505451dbef07314ea16e1eb
git.kernel.org/stable/c/98414b4253... WEB
https://git.kernel.org/stable/c/98414b42530af65cb984ffc12685096a3b5e179a

Frequently Asked Questions

What is CVE-2026-72217?
CVE-2026-72217 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-2026-72217?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72217?
CVE-2026-72217 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72217?
CVE-2026-72217 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72217?
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-jffc-255g-3gq9",
  "modified" : "2026-08-17T06:33:16Z",
  "published" : "2026-08-15T06:32:16Z",
  "aliases" : [ "CVE-2026-72217" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: Bound-check xdr_buf_to_bvec() stores before writing\n\nxdr_buf_to_bvec() writes a bio_vec into the caller's array before\ntesting whether that slot is in range, and the head branch performs\nthe store with no check at all. When the caller's budget is exactly\nused up, the next store lands one element past the end of the array.\nThe overflow label returns count - 1, which masks the surplus store\nbut cannot undo it.\n\nrq_bvec, the array passed by nfsd_vfs_write(), is allocated to\nexactly rq_maxpages entries with no slack. The OOB store can land in\nadjacent slab memory; the bv_len and bv_offset fields written there\nare derived from client-supplied RPC payload sizes.\n\nMove the in-range check ahead of the store in the head, page-loop,\nand tail branches. With the check at the top of each sequence, count\nis incremented only after a successful store, so the overflow label\ncan return count directly.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72217"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/42f5b80dda6b86e424054baf1475df686c403d5c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4a1148f2739d5089c3ca8ae2e9d1053e219ab5df"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6029e711a818bf34d6c4b90cafee24f3afffa110"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/69e18135e2a004a79505451dbef07314ea16e1eb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/98414b42530af65cb984ffc12685096a3b5e179a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:40Z"
  }
}