CVE-2026-89954: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-jx3v-9v24-f367
Share
CVSS 8.0
Published
Advisory Summary

CVE-2026-89954 is a HIGH (CVSS 8.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89954 at a Glance

CVE Identifier CVE-2026-89954
GHSA Identifier GHSA-jx3v-9v24-f367
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.0

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability High (A:H)

How to Fix CVE-2026-89954

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-2026-89954, 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: mtd: afs: validate v2 image info bounds The AFS v2 parser uses footer[8] to locate the image information block inside the current erase block, then uses the image information region_count to walk entries from a fixed local array. The footer offset and region count come from flash contents and are not checked against the erase block or the local image-info array before use. Reject v2 entries whose image information offset would underflow the erase block calculation, and reject region counts that cannot fit in the local image-info array before walking region entries.

References

NVD — CVE-2026-89954 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89954
git.kernel.org/stable/c/18916f4750... WEB
https://git.kernel.org/stable/c/18916f475057cbd2fb8ea6ae86e6b85884ad1d53
git.kernel.org/stable/c/1bec05a684... WEB
https://git.kernel.org/stable/c/1bec05a68414cf8d0cab6cb42445b8603f32ffc4
git.kernel.org/stable/c/1edea8900c... WEB
https://git.kernel.org/stable/c/1edea8900ca3e405c1421d8b5c29f97107874f72
git.kernel.org/stable/c/3ad8ff12fd... WEB
https://git.kernel.org/stable/c/3ad8ff12fd44b08af9212ac4883a7e29d2ab7348
git.kernel.org/stable/c/875daa3c75... WEB
https://git.kernel.org/stable/c/875daa3c750814ff2e2dc050239c390048f0bcd0
git.kernel.org/stable/c/d14e629813... WEB
https://git.kernel.org/stable/c/d14e6298139f58a87a87d7022e26a7f37f0ddce7
git.kernel.org/stable/c/da740539e8... WEB
https://git.kernel.org/stable/c/da740539e8f370767317e24615349b9342a6e773
git.kernel.org/stable/c/e9290031f7... WEB
https://git.kernel.org/stable/c/e9290031f736e99ad17c25c00311c92c266843b7

Frequently Asked Questions

What is CVE-2026-89954?
CVE-2026-89954 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-2026-89954?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89954?
CVE-2026-89954 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H.
What CWE is associated with CVE-2026-89954?
CVE-2026-89954 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89954?
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-jx3v-9v24-f367",
  "modified" : "2026-09-16T15:31:03Z",
  "published" : "2026-09-16T12:30:43Z",
  "aliases" : [ "CVE-2026-89954" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: afs: validate v2 image info bounds\n\nThe AFS v2 parser uses footer[8] to locate the image information block\ninside the current erase block, then uses the image information\nregion_count to walk entries from a fixed local array. The footer offset\nand region count come from flash contents and are not checked against the\nerase block or the local image-info array before use.\n\nReject v2 entries whose image information offset would underflow the\nerase block calculation, and reject region counts that cannot fit in the\nlocal image-info array before walking region entries.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89954"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/18916f475057cbd2fb8ea6ae86e6b85884ad1d53"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1bec05a68414cf8d0cab6cb42445b8603f32ffc4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1edea8900ca3e405c1421d8b5c29f97107874f72"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3ad8ff12fd44b08af9212ac4883a7e29d2ab7348"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/875daa3c750814ff2e2dc050239c390048f0bcd0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d14e6298139f58a87a87d7022e26a7f37f0ddce7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/da740539e8f370767317e24615349b9342a6e773"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e9290031f736e99ad17c25c00311c92c266843b7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:17:05Z"
  }
}