CVE-2026-74321: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-frrx-chj7-rchf
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CVSS 7.5
Published
Advisory Summary

CVE-2026-74321 is a HIGH (CVSS 7.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74321 at a Glance

CVE Identifier CVE-2026-74321
GHSA Identifier GHSA-frrx-chj7-rchf
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2026-74321

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-2026-74321, 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: btrfs: fix invalid pointer dereference in __btrfs_run_delayed_refs() In the beginning of the loop, we try to obtain a locked delayed ref head, if 'locked_ref' is currently NULL, by calling btrfs_select_ref_head(), which can return an error pointer. If the error pointer is -EAGAIN we do a continue and go back to the beginning of the loop, which will not try again to call btrfs_select_ref_head() since 'locked_ref' is no longer NULL but it's ERR_PTR(-EAGAIN), and then we do: spin_lock(&locked_ref->lock); against a ERR_PTR(-EAGAIN) value, generating an invalid pointer dereference. Fix this by ensuring that 'locked_ref' is set to NULL when btrfs_select_ref_head() returns ERR_PTR(-EAGAIN) and incrementing 'count' as well, to prevent infinite looping. We do this by doing a goto to the bottom of the loop that already sets 'locked_ref' to NULL and does a cond_resched(), with an increment to 'count' right before the goto. These measures were in place before the refactoring in commit 0110a4c43451 ("btrfs: refactor __btrfs_run_delayed_refs loop") but were unintentionally lost afterwards.

References

NVD — CVE-2026-74321 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74321
git.kernel.org/stable/c/015dc4a1e0... WEB
https://git.kernel.org/stable/c/015dc4a1e0c2cba551d4620eba13d26d5081dc34
git.kernel.org/stable/c/3b15d02be0... WEB
https://git.kernel.org/stable/c/3b15d02be05e74321adb1e0ae0cb4ccfba7c6cb1
git.kernel.org/stable/c/486f8298b6... WEB
https://git.kernel.org/stable/c/486f8298b6188ff11ef1f4be7f1d5d2e4d1b1fae
git.kernel.org/stable/c/65770111a2... WEB
https://git.kernel.org/stable/c/65770111a2d47c2b15e20b2ba92bb12198f289d4
git.kernel.org/stable/c/9faa6b69ad... WEB
https://git.kernel.org/stable/c/9faa6b69ad73f03c7bde53e07d75a28822dc9a1a
git.kernel.org/stable/c/a71143590c... WEB
https://git.kernel.org/stable/c/a71143590ce9764dbcb47617647592ff8b4d48bc
git.kernel.org/stable/c/ba9fa2ff59... WEB
https://git.kernel.org/stable/c/ba9fa2ff5981589bb49094d3358c339b37c47f53
git.kernel.org/stable/c/c372ca227e... WEB
https://git.kernel.org/stable/c/c372ca227e16bace86f1df1fa4ae6849e2fcfa28

Frequently Asked Questions

What is CVE-2026-74321?
CVE-2026-74321 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-2026-74321?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74321?
CVE-2026-74321 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-74321?
CVE-2026-74321 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74321?
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-frrx-chj7-rchf",
  "modified" : "2026-08-17T06:33:38Z",
  "published" : "2026-08-15T06:32:30Z",
  "aliases" : [ "CVE-2026-74321" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid pointer dereference in __btrfs_run_delayed_refs()\n\nIn the beginning of the loop, we try to obtain a locked delayed ref head,\nif 'locked_ref' is currently NULL, by calling btrfs_select_ref_head(),\nwhich can return an error pointer. If the error pointer is -EAGAIN we do\na continue and go back to the beginning of the loop, which will not try\nagain to call btrfs_select_ref_head() since 'locked_ref' is no longer\nNULL but it's ERR_PTR(-EAGAIN), and then we do:\n\n   spin_lock(&locked_ref->lock);\n\nagainst a ERR_PTR(-EAGAIN) value, generating an invalid pointer\ndereference.\n\nFix this by ensuring that 'locked_ref' is set to NULL when\nbtrfs_select_ref_head() returns ERR_PTR(-EAGAIN) and incrementing 'count'\nas well, to prevent infinite looping. We do this by doing a goto to the\nbottom of the loop that already sets 'locked_ref' to NULL and does a\ncond_resched(), with an increment to 'count' right before the goto.\nThese measures were in place before the refactoring in commit 0110a4c43451\n(\"btrfs: refactor __btrfs_run_delayed_refs loop\") but were unintentionally\nlost afterwards.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74321"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/015dc4a1e0c2cba551d4620eba13d26d5081dc34"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3b15d02be05e74321adb1e0ae0cb4ccfba7c6cb1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/486f8298b6188ff11ef1f4be7f1d5d2e4d1b1fae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/65770111a2d47c2b15e20b2ba92bb12198f289d4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9faa6b69ad73f03c7bde53e07d75a28822dc9a1a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a71143590ce9764dbcb47617647592ff8b4d48bc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ba9fa2ff5981589bb49094d3358c339b37c47f53"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c372ca227e16bace86f1df1fa4ae6849e2fcfa28"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:32Z"
  }
}