CVE-2026-97561: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vg8h-339p-69c7
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Advisory Summary

CVE-2026-97561 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-2026-97561 at a Glance

CVE Identifier CVE-2026-97561
GHSA Identifier GHSA-vg8h-339p-69c7
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-2026-97561

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-2026-97561, 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: smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid When the administrator mounts with forceuid or forcegid (uid=/gid= mount options), they expect all files to appear owned by the specified user/group. However, several code paths unconditionally called sid_to_id() to overwrite cf_uid/cf_gid with server-provided values, ignoring the administrator's explicit override: - smb311_posix_info_to_fattr() (stat via POSIX extensions) - cifs_posix_to_fattr() (readdir via POSIX extensions) - parse_sec_desc() (CIFS ACL ownership mapping) This allowed an untrusted server to dictate local file ownership even when the mount was configured to force specific uid/gid values. Fix all three call sites to check CIFS_MOUNT_OVERR_UID and CIFS_MOUNT_OVERR_GID before calling sid_to_id(), following the same pattern already used by cifs_unix_basic_to_fattr() for unix extensions.

References

NVD — CVE-2026-97561 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97561
git.kernel.org/stable/c/18a72975e9... WEB
https://git.kernel.org/stable/c/18a72975e9f35aadecc75b031f693f2d1f49308f
git.kernel.org/stable/c/6ac7a29691... WEB
https://git.kernel.org/stable/c/6ac7a29691558bed18e2df1780636b8aa0fd13d5
git.kernel.org/stable/c/e1b74f8f8c... WEB
https://git.kernel.org/stable/c/e1b74f8f8c1d13190b09fe623b729d36b7ac22a8

Frequently Asked Questions

What is CVE-2026-97561?
CVE-2026-97561 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-2026-97561?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-97561?
CVE-2026-97561 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-97561?
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-vg8h-339p-69c7",
  "modified" : "2026-10-15T12:30:53Z",
  "published" : "2026-09-25T12:31:24Z",
  "aliases" : [ "CVE-2026-97561" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: honor forceuid/forcegid when mapping SIDs to uid/gid\n\nWhen the administrator mounts with forceuid or forcegid (uid=/gid=\nmount options), they expect all files to appear owned by the specified\nuser/group.  However, several code paths unconditionally called\nsid_to_id() to overwrite cf_uid/cf_gid with server-provided values,\nignoring the administrator's explicit override:\n\n  - smb311_posix_info_to_fattr() (stat via POSIX extensions)\n  - cifs_posix_to_fattr() (readdir via POSIX extensions)\n  - parse_sec_desc() (CIFS ACL ownership mapping)\n\nThis allowed an untrusted server to dictate local file ownership even\nwhen the mount was configured to force specific uid/gid values.\n\nFix all three call sites to check CIFS_MOUNT_OVERR_UID and\nCIFS_MOUNT_OVERR_GID before calling sid_to_id(), following the\nsame pattern already used by cifs_unix_basic_to_fattr() for unix\nextensions.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97561"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/18a72975e9f35aadecc75b031f693f2d1f49308f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6ac7a29691558bed18e2df1780636b8aa0fd13d5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e1b74f8f8c1d13190b09fe623b729d36b7ac22a8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:06Z"
  }
}