CVE-2026-89609: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-c77f-5fp9-7h2f
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CVSS 7.8
Published
Advisory Summary

CVE-2026-89609 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89609 at a Glance

CVE Identifier CVE-2026-89609
GHSA Identifier GHSA-c77f-5fp9-7h2f
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)
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-2026-89609

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-2026-89609, 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: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfs_exorcise_daemon() drops queued messages from a dying daemon without holding ecryptfs_msg_ctx_lists_mux, but ecryptfs_msg_ctx_alloc_to_free() requires that lock. Take the list lock while moving the queued contexts back to the free list to avoid racing with other global msg ctx list users.

References

NVD — CVE-2026-89609 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89609
git.kernel.org/stable/c/0d9636ecba... WEB
https://git.kernel.org/stable/c/0d9636ecba34bd553ecf19049f7705505aea62fd
git.kernel.org/stable/c/4c02acbe0a... WEB
https://git.kernel.org/stable/c/4c02acbe0a2692ca9991c51e62bbe6d6b59dac31
git.kernel.org/stable/c/4d50b8aea1... WEB
https://git.kernel.org/stable/c/4d50b8aea11ad9594c8704a4c647e11311ab7b19
git.kernel.org/stable/c/64d8998e36... WEB
https://git.kernel.org/stable/c/64d8998e36cfd2bb7114f3af0aa51c5a559a39b3
git.kernel.org/stable/c/779972513c... WEB
https://git.kernel.org/stable/c/779972513c2fa8c7938e54976f686091dafff22f
git.kernel.org/stable/c/7e48afafe7... WEB
https://git.kernel.org/stable/c/7e48afafe7abc275f7b6916613bb18b821e7d94a
git.kernel.org/stable/c/956541efd1... WEB
https://git.kernel.org/stable/c/956541efd125a10442f9514668bc5c852702c93b
git.kernel.org/stable/c/ec1627bcb5... WEB
https://git.kernel.org/stable/c/ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a

Frequently Asked Questions

What is CVE-2026-89609?
CVE-2026-89609 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-2026-89609?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89609?
CVE-2026-89609 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-89609?
CVE-2026-89609 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89609?
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-c77f-5fp9-7h2f",
  "modified" : "2026-09-14T15:32:31Z",
  "published" : "2026-09-11T21:31:33Z",
  "aliases" : [ "CVE-2026-89609" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\necryptfs: hold msg ctx list lock when cleaning daemon queue\n\necryptfs_exorcise_daemon() drops queued messages from a dying daemon\nwithout holding ecryptfs_msg_ctx_lists_mux, but\necryptfs_msg_ctx_alloc_to_free() requires that lock.\n\nTake the list lock while moving the queued contexts back to the free\nlist to avoid racing with other global msg ctx list users.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89609"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4c02acbe0a2692ca9991c51e62bbe6d6b59dac31"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4d50b8aea11ad9594c8704a4c647e11311ab7b19"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/64d8998e36cfd2bb7114f3af0aa51c5a559a39b3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/779972513c2fa8c7938e54976f686091dafff22f"
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  }, {
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    "url" : "https://git.kernel.org/stable/c/ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:45Z"
  }
}