CVE-2026-80806: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-jqxc-3f8r-hc2f
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Advisory Summary

CVE-2026-80806 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-2026-80806 at a Glance

CVE Identifier CVE-2026-80806
GHSA Identifier GHSA-jqxc-3f8r-hc2f
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-2026-80806

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-2026-80806, 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: ext4: don't enable DAX on new encrypted files Currently, when a new encrypted regular file is created, the call to ext4_set_inode_flags(inode, init=true) in __ext4_new_inode() is made before EXT4_INODE_ENCRYPT is set. As a result, it can set S_DAX if the filesystem is mounted with "-o dax=always". EXT4_INODE_ENCRYPT then actually gets set a bit later in __ext4_new_inode(), when it calls fscrypt_set_context() which calls ext4_set_context(). ext4_set_context() sets EXT4_INODE_ENCRYPT and calls ext4_set_inode_flags(inode, init=false) to set S_ENCRYPTED too. This was intended to clear S_DAX as well. However, this was broken by commit 043546e46dc7 ("fs/ext4: Only change S_DAX on inode load"). This causes data written to the file to bypass encryption, also causing xfstests failures such as generic/548 (when "-o dax=always" is used). Fix this by simplifying the flow by making __ext4_new_inode() set EXT4_INODE_ENCRYPT earlier. This makes it take effect in ext4_set_inode_flags(inode, init=true), making S_DAX never be set. Similarly, make EXT4_STATE_MAY_INLINE_DATA never be set in the first place on new encrypted inodes. Then it doesn't need to be cleared. As a result of these simplifications, ext4_set_context() no longer needs to change inode flags or state when 'handle != NULL'. Remove that too.

References

NVD — CVE-2026-80806 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80806
git.kernel.org/stable/c/3392391b36... WEB
https://git.kernel.org/stable/c/3392391b363a63ebb531d45318a729b1c998565b
git.kernel.org/stable/c/458776af00... WEB
https://git.kernel.org/stable/c/458776af0061afec1014cb3cd0061e282e482e83
git.kernel.org/stable/c/5959cad3cf... WEB
https://git.kernel.org/stable/c/5959cad3cfa852ec07bbdaf9c17f4838a94a8e6c
git.kernel.org/stable/c/a13f61ba9b... WEB
https://git.kernel.org/stable/c/a13f61ba9b2a7a4ff1f140949ccfad23c5313757
git.kernel.org/stable/c/add98959b2... WEB
https://git.kernel.org/stable/c/add98959b220935b243170214c787bc03044a44d
git.kernel.org/stable/c/da32af420d... WEB
https://git.kernel.org/stable/c/da32af420d6d466e247c43ac0b829edeac7ae0ad
git.kernel.org/stable/c/e27bae3521... WEB
https://git.kernel.org/stable/c/e27bae352158c007143d5bb50f3af33a177c0a37
git.kernel.org/stable/c/ed1cd834da... WEB
https://git.kernel.org/stable/c/ed1cd834da65db127f1c30ff67e78f14825a06c1
git.kernel.org/stable/c/f53b325068... WEB
https://git.kernel.org/stable/c/f53b325068bca0b238c3e0d2eb7de9b1f2268cab

Frequently Asked Questions

What is CVE-2026-80806?
CVE-2026-80806 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-2026-80806?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80806?
CVE-2026-80806 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80806?
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-jqxc-3f8r-hc2f",
  "modified" : "2026-09-04T18:31:27Z",
  "published" : "2026-09-04T18:31:27Z",
  "aliases" : [ "CVE-2026-80806" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\next4: don't enable DAX on new encrypted files\n\nCurrently, when a new encrypted regular file is created, the call to\next4_set_inode_flags(inode, init=true) in __ext4_new_inode() is made\nbefore EXT4_INODE_ENCRYPT is set.  As a result, it can set S_DAX if the\nfilesystem is mounted with \"-o dax=always\".\n\nEXT4_INODE_ENCRYPT then actually gets set a bit later in\n__ext4_new_inode(), when it calls fscrypt_set_context() which calls\next4_set_context().  ext4_set_context() sets EXT4_INODE_ENCRYPT and\ncalls ext4_set_inode_flags(inode, init=false) to set S_ENCRYPTED too.\n\nThis was intended to clear S_DAX as well.  However, this was broken by\ncommit 043546e46dc7 (\"fs/ext4: Only change S_DAX on inode load\").  This\ncauses data written to the file to bypass encryption, also causing\nxfstests failures such as generic/548 (when \"-o dax=always\" is used).\n\nFix this by simplifying the flow by making __ext4_new_inode() set\nEXT4_INODE_ENCRYPT earlier.  This makes it take effect in\next4_set_inode_flags(inode, init=true), making S_DAX never be set.\n\nSimilarly, make EXT4_STATE_MAY_INLINE_DATA never be set in the first\nplace on new encrypted inodes.  Then it doesn't need to be cleared.\n\nAs a result of these simplifications, ext4_set_context() no longer needs\nto change inode flags or state when 'handle != NULL'.  Remove that too.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80806"
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    "url" : "https://git.kernel.org/stable/c/3392391b363a63ebb531d45318a729b1c998565b"
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    "type" : "WEB",
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/e27bae352158c007143d5bb50f3af33a177c0a37"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ed1cd834da65db127f1c30ff67e78f14825a06c1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f53b325068bca0b238c3e0d2eb7de9b1f2268cab"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:07Z"
  }
}