CVE-2026-89490: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-3jg7-r7pg-8654
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Advisory Summary

CVE-2026-89490 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-2026-89490 at a Glance

CVE Identifier CVE-2026-89490
GHSA Identifier GHSA-3jg7-r7pg-8654
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-2026-89490

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-2026-89490, 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: ocfs2: fix readdir position truncation on 32-bit kernels In ocfs2_dir_foreach_blk_el(), the directory cookie position is rebuilt with ctx->pos = (ctx->pos & ~(sb->s_blocksize - 1)) | offset; `ctx->pos` is loff_t (signed 64-bit), while `sb->s_blocksize` is unsigned long. On 32-bit kernels unsigned long is 32-bit, so the mask ~(sb->s_blocksize - 1) is computed as a 32-bit unsigned value (e.g. 0xfffff000 for a 4 KiB block size). In the AND expression with the 64-bit `ctx->pos`, that unsigned operand is zero-extended to 64 bits per the usual arithmetic conversions, yielding 0x00000000fffff000. The high 32 bits of `ctx->pos` are silently cleared, even though directory size is allowed to exceed 4 GiB. When readdir() crosses the 4 GiB boundary on a 32-bit kernel the position is reset back into the first 4 GiB block, making the re-validation path re-enumerate already-returned dirents indefinitely. This is ocfs2_dir_foreach_blk_el(), the extent-list readdir path taken for all non-inline directories, so a directory large enough to cross 4 GiB reaches it. This is the same class of bug that commit 3dce5bb82c97 ("exfat: Fix bitwise operation having different size") fixed in exfat, and the fix mirrors the equivalent ext4 fix in this series. Cast the operand to loff_t so the mask is 64-bit before the AND: ctx->pos = (ctx->pos & ~((loff_t)sb->s_blocksize - 1)) | offset; 64-bit kernels are unaffected.

References

NVD — CVE-2026-89490 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89490
git.kernel.org/stable/c/1001fb3b69... WEB
https://git.kernel.org/stable/c/1001fb3b69a11eaa0dc7c7428f6edfa48b88997a
git.kernel.org/stable/c/1ae7029823... WEB
https://git.kernel.org/stable/c/1ae7029823ae4c91664cb32eec7fb8dd5e1a337a
git.kernel.org/stable/c/94569154ba... WEB
https://git.kernel.org/stable/c/94569154ba49f5f85645d2019c8e206213d8404e
git.kernel.org/stable/c/a63308ab42... WEB
https://git.kernel.org/stable/c/a63308ab426f3a3c7e33b02c150ea59054620261
git.kernel.org/stable/c/b53e2b271e... WEB
https://git.kernel.org/stable/c/b53e2b271eeb6040c2a4a78230c570dc41cdcfa4
git.kernel.org/stable/c/c0c165487a... WEB
https://git.kernel.org/stable/c/c0c165487a2ea5a37ddcdab4259157b7a527129c
git.kernel.org/stable/c/c28dc34079... WEB
https://git.kernel.org/stable/c/c28dc3407937aa8f225942538cd585c9b28ea65a
git.kernel.org/stable/c/f9dd5cad8d... WEB
https://git.kernel.org/stable/c/f9dd5cad8d09110ddff2db1fe756aae93c7552ff

Frequently Asked Questions

What is CVE-2026-89490?
CVE-2026-89490 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-2026-89490?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89490?
CVE-2026-89490 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89490?
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-3jg7-r7pg-8654",
  "modified" : "2026-09-14T15:32:26Z",
  "published" : "2026-09-11T21:31:28Z",
  "aliases" : [ "CVE-2026-89490" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix readdir position truncation on 32-bit kernels\n\nIn ocfs2_dir_foreach_blk_el(), the directory cookie position is\nrebuilt with\n\n\tctx->pos = (ctx->pos & ~(sb->s_blocksize - 1)) | offset;\n\n`ctx->pos` is loff_t (signed 64-bit), while `sb->s_blocksize` is\nunsigned long.  On 32-bit kernels unsigned long is 32-bit, so the mask\n\n\t~(sb->s_blocksize - 1)\n\nis computed as a 32-bit unsigned value (e.g. 0xfffff000 for a 4 KiB\nblock size).  In the AND expression with the 64-bit `ctx->pos`, that\nunsigned operand is zero-extended to 64 bits per the usual arithmetic\nconversions, yielding 0x00000000fffff000.  The high 32 bits of\n`ctx->pos` are silently cleared, even though directory size is\nallowed to exceed 4 GiB.\n\nWhen readdir() crosses the 4 GiB boundary on a 32-bit kernel the\nposition is reset back into the first 4 GiB block, making the\nre-validation path re-enumerate already-returned dirents indefinitely.\n\nThis is ocfs2_dir_foreach_blk_el(), the extent-list readdir path taken\nfor all non-inline directories, so a directory large enough to cross\n4 GiB reaches it.\n\nThis is the same class of bug that commit 3dce5bb82c97 (\"exfat: Fix\nbitwise operation having different size\") fixed in exfat, and the\nfix mirrors the equivalent ext4 fix in this series.  Cast the operand\nto loff_t so the mask is 64-bit before the AND:\n\n\tctx->pos = (ctx->pos & ~((loff_t)sb->s_blocksize - 1)) | offset;\n\n64-bit kernels are unaffected.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89490"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1001fb3b69a11eaa0dc7c7428f6edfa48b88997a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1ae7029823ae4c91664cb32eec7fb8dd5e1a337a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/94569154ba49f5f85645d2019c8e206213d8404e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a63308ab426f3a3c7e33b02c150ea59054620261"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b53e2b271eeb6040c2a4a78230c570dc41cdcfa4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c0c165487a2ea5a37ddcdab4259157b7a527129c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c28dc3407937aa8f225942538cd585c9b28ea65a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f9dd5cad8d09110ddff2db1fe756aae93c7552ff"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:30Z"
  }
}