CVE-2026-80892: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-6hp7-9qfx-w4m8
Share
Published
Advisory Summary

CVE-2026-80892 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-2026-80892 at a Glance

CVE Identifier CVE-2026-80892
GHSA Identifier GHSA-6hp7-9qfx-w4m8
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-2026-80892

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-2026-80892, 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: erofs: cap LZMA stream pool size fs/erofs/decompressor_lzma.c sizes the module-global MicroLZMA stream pool from num_possible_cpus() when the lzma_streams module parameter is unset, then z_erofs_load_lzma_config() preallocates one image-supplied dictionary per stream, accepting dictionaries up to 8 MiB. On high-CPU systems, a small EROFS image can pin hundreds of MiB of vmalloc-backed decoder state until the erofs module is unloaded. Impact: An EROFS image mounted by the system can pin up to 8 MiB of vmalloc memory per LZMA stream, either as intended or unexpectedly. Bound the default stream count by a new CONFIG_EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS option, default 16, so the worst-case default preallocation is 128 MiB if the number of CPUs is no less than 16 while preserving the existing per-image dictionary limit. An explicit lzma_streams module parameter is still honoured as-is, so administrators who deliberately size the pool are not affected.

References

NVD — CVE-2026-80892 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80892
git.kernel.org/stable/c/0c676903cb... WEB
https://git.kernel.org/stable/c/0c676903cb2a61992ded8e7907609cc6b0f11744
git.kernel.org/stable/c/5aaa06dfc1... WEB
https://git.kernel.org/stable/c/5aaa06dfc10f8398c8807453dbec738ea9af10e4
git.kernel.org/stable/c/682cb3ece3... WEB
https://git.kernel.org/stable/c/682cb3ece37fc5141e73bc726ccf4adb833e5189
git.kernel.org/stable/c/c9b47e6b23... WEB
https://git.kernel.org/stable/c/c9b47e6b23114e939b17f818471c7a46e59006e7
git.kernel.org/stable/c/e52da169b8... WEB
https://git.kernel.org/stable/c/e52da169b8c0d19bb2d803f2a07fe0e5a00462d6
git.kernel.org/stable/c/e8b3d09aa8... WEB
https://git.kernel.org/stable/c/e8b3d09aa8889dda9be9cbb3d2f0218c4b9acde4

Frequently Asked Questions

What is CVE-2026-80892?
CVE-2026-80892 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-2026-80892?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80892?
CVE-2026-80892 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80892?
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-6hp7-9qfx-w4m8",
  "modified" : "2026-09-04T18:31:33Z",
  "published" : "2026-09-04T18:31:33Z",
  "aliases" : [ "CVE-2026-80892" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: cap LZMA stream pool size\n\nfs/erofs/decompressor_lzma.c sizes the module-global MicroLZMA stream\npool from num_possible_cpus() when the lzma_streams module parameter is\nunset, then z_erofs_load_lzma_config() preallocates one image-supplied\ndictionary per stream, accepting dictionaries up to 8 MiB.  On high-CPU\nsystems, a small EROFS image can pin hundreds of MiB of vmalloc-backed\ndecoder state until the erofs module is unloaded.\n\nImpact: An EROFS image mounted by the system can pin up to 8 MiB of\nvmalloc memory per LZMA stream, either as intended or unexpectedly.\n\nBound the default stream count by a new\nCONFIG_EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS option, default 16, so the\nworst-case default preallocation is 128 MiB if the number of CPUs is no\nless than 16 while preserving the existing per-image dictionary limit.\nAn explicit lzma_streams module parameter is still honoured as-is, so\nadministrators who deliberately size the pool are not affected.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80892"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0c676903cb2a61992ded8e7907609cc6b0f11744"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5aaa06dfc10f8398c8807453dbec738ea9af10e4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/682cb3ece37fc5141e73bc726ccf4adb833e5189"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c9b47e6b23114e939b17f818471c7a46e59006e7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e52da169b8c0d19bb2d803f2a07fe0e5a00462d6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e8b3d09aa8889dda9be9cbb3d2f0218c4b9acde4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T18:17:57Z"
  }
}