CVE-2026-90420: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-fc9x-c3wj-jf8g
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Advisory Summary

CVE-2026-90420 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-2026-90420 at a Glance

CVE Identifier CVE-2026-90420
GHSA Identifier GHSA-fc9x-c3wj-jf8g
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-2026-90420

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-2026-90420, 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: nilfs2: fix infinite loop in nilfs_clean_segments() syzbot reported a hung task in nilfs_transaction_begin(). This occurs because the cleaner ioctl falls into an infinite loop if nilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device is remounted as read-only after an I/O error). Currently in nilfs_clean_segments(), if err is non-zero, it logs the error and sleeps but doesn't abort when it encounters a terminal error like -EROFS. This causes the thread to loop forever. Fix this by breaking out of the loop if nilfs_segctor_construct() returns -EROFS. This matches the behaviour in nilfs_segctor_write_out(), which also handles -EROFS.

References

NVD — CVE-2026-90420 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90420
git.kernel.org/stable/c/1fc6df85b4... WEB
https://git.kernel.org/stable/c/1fc6df85b4954b6fda9c351843aaca3c06f66d8d
git.kernel.org/stable/c/217b967ad7... WEB
https://git.kernel.org/stable/c/217b967ad7887a3e1ebc08f46f6484e081acd4b4
git.kernel.org/stable/c/3bcdbdaac8... WEB
https://git.kernel.org/stable/c/3bcdbdaac884a4baa59716cf9bd9470c75276e2d
git.kernel.org/stable/c/8cea0bc78a... WEB
https://git.kernel.org/stable/c/8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8
git.kernel.org/stable/c/c07e5ad653... WEB
https://git.kernel.org/stable/c/c07e5ad6539e7e9350d5c65cbf8adb69d1711b15
git.kernel.org/stable/c/ce5a5ad1a8... WEB
https://git.kernel.org/stable/c/ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18
git.kernel.org/stable/c/d7afca8e4e... WEB
https://git.kernel.org/stable/c/d7afca8e4efbf4c455b4663c29ae59fde2f1b671
git.kernel.org/stable/c/e3e9367dae... WEB
https://git.kernel.org/stable/c/e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3

Frequently Asked Questions

What is CVE-2026-90420?
CVE-2026-90420 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-2026-90420?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90420?
CVE-2026-90420 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90420?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-fc9x-c3wj-jf8g",
  "modified" : "2026-09-17T18:32:05Z",
  "published" : "2026-09-17T18:32:04Z",
  "aliases" : [ "CVE-2026-90420" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_clean_segments()\n\nsyzbot reported a hung task in nilfs_transaction_begin(). This occurs\nbecause the cleaner ioctl falls into an infinite loop if\nnilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device\nis remounted as read-only after an I/O error).\n\nCurrently in nilfs_clean_segments(), if err is non-zero, it logs the\nerror and sleeps but doesn't abort when it encounters a terminal error\nlike -EROFS. This causes the thread to loop forever.\n\nFix this by breaking out of the loop if nilfs_segctor_construct()\nreturns -EROFS. This matches the behaviour in\nnilfs_segctor_write_out(), which also handles -EROFS.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/217b967ad7887a3e1ebc08f46f6484e081acd4b4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3bcdbdaac884a4baa59716cf9bd9470c75276e2d"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8"
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  "database_specific" : {
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    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:46Z"
  }
}