CVE-2026-52911: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-593m-gq54-r4vq
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CVSS 8.8
Published
Advisory Summary

CVE-2026-52911 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52911 at a Glance

CVE Identifier CVE-2026-52911
GHSA Identifier GHSA-593m-gq54-r4vq
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification General Security Weakness
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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2026-52911

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-2026-52911, 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: ksmbd: scope conn->binding slowpath to bound sessions only When the binding SESSION_SETUP sets conn->binding = true, the flag stays set after the call so that the global session lookup in ksmbd_session_lookup_all() can find the session, which was not added to conn->sessions. Because the flag is connection-wide, the global lookup path will also resolve any other session by id if asked. Tighten the global lookup so that the returned session must have this connection registered in its channel xarray (sess->ksmbd_chann_list). The channel entry is installed by the existing binding_session path in ntlm_authenticate()/krb5_authenticate() when a SESSION_SETUP completes successfully, so this condition is a strict equivalent of "this connection has been accepted as a channel of this session". Connections that have not bound to a given session cannot reach it via the global table. The existing conn->binding gate for entering the slowpath is preserved so that non-binding connections keep the fast-path-only behavior, and the session->state check is unchanged.

References

NVD — CVE-2026-52911 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52911
git.kernel.org/stable/c/1e2bec062c... WEB
https://git.kernel.org/stable/c/1e2bec062c5c9ec282636715166056d0998d746d
git.kernel.org/stable/c/1ff46c9915... WEB
https://git.kernel.org/stable/c/1ff46c9915c1cbf454db58a8cb87f7cac818e6a6
git.kernel.org/stable/c/2cc8a4db63... WEB
https://git.kernel.org/stable/c/2cc8a4db633b10715450b291c1343859a4b2c509
git.kernel.org/stable/c/974c1c224e... WEB
https://git.kernel.org/stable/c/974c1c224e85549dc3459f3bb2255bbbdd2b9372
git.kernel.org/stable/c/b0da97c034... WEB
https://git.kernel.org/stable/c/b0da97c034b6107d14e537e212d4ce8b22109a58
git.kernel.org/stable/c/e3a93ce6e2... WEB
https://git.kernel.org/stable/c/e3a93ce6e25757b8f375e38b8f91e1d9da4edc1a
git.kernel.org/stable/c/e74c00c6af... WEB
https://git.kernel.org/stable/c/e74c00c6af428a39e564cdc5bd3a3648c6d8de87

Frequently Asked Questions

What is CVE-2026-52911?
CVE-2026-52911 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-2026-52911?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52911?
CVE-2026-52911 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-52911?
CVE-2026-52911 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52911?
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-593m-gq54-r4vq",
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  "published" : "2026-06-21T09:30:51Z",
  "aliases" : [ "CVE-2026-52911" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: scope conn->binding slowpath to bound sessions only\n\nWhen the binding SESSION_SETUP sets conn->binding = true, the flag stays\nset after the call so that the global session lookup in\nksmbd_session_lookup_all() can find the session, which was not added to\nconn->sessions. Because the flag is connection-wide, the global lookup\npath will also resolve any other session by id if asked.\n\nTighten the global lookup so that the returned session must have this\nconnection registered in its channel xarray (sess->ksmbd_chann_list).\nThe channel entry is installed by the existing binding_session path in\nntlm_authenticate()/krb5_authenticate() when a SESSION_SETUP completes\nsuccessfully, so this condition is a strict equivalent of \"this\nconnection has been accepted as a channel of this session\". Connections\nthat have not bound to a given session cannot reach it via the global\ntable.\n\nThe existing conn->binding gate for entering the slowpath is preserved\nso that non-binding connections keep the fast-path-only behavior, and\nthe session->state check is unchanged.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-21T08:16:23Z"
  }
}