CVE-2026-45984: Software Security Vulnerability Vulnerability

HIGH

Advisory Identifier: GHSA-c7gf-37rm-rpg6

CVSS 7.8

Published 2026-05-27

Advisory Summary

CVE-2026-45984 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-826: Premature Release of Resource During Expected Lifetime) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product releases a resource that is still intended to be used by itself or another actor.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-45984 at a Glance

CVE Identifier CVE-2026-45984

GHSA Identifier GHSA-c7gf-37rm-rpg6

Severity HIGH

CVSS v3.1 Base Score 7.8

CWE Classification CWE-826: Premature Release of Resource During Expected Lifetime

Affected Product Software

Package Ecosystem Maven

Published Date 2026-05-27

Last Updated 2026-09-04

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality High (C:H)

Integrity High (I:H)

Availability High (A:H)

How to Fix CVE-2026-45984

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-2026-45984, 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 CWE-826: Premature Release of Resource During Expected Lifetime, where the product releases a resource that is still intended to be used by itself or another actor. 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: gfs2: Fix use-after-free in iomap inline data write path The inline data buffer head (dibh) is being released prematurely in gfs2_iomap_begin() via release_metapath() while iomap->inline_data still points to dibh->b_data. This causes a use-after-free when iomap_write_end_inline() later attempts to write to the inline data area. The bug sequence: 1. gfs2_iomap_begin() calls gfs2_meta_inode_buffer() to read inode metadata into dibh 2. Sets iomap->inline_data = dibh->b_data + sizeof(struct gfs2_dinode) 3. Calls release_metapath() which calls brelse(dibh), dropping refcount to 0 4. kswapd reclaims the page (~39ms later in the syzbot report) 5. iomap_write_end_inline() tries to memcpy() to iomap->inline_data 6. KASAN detects use-after-free write to freed memory Fix by storing dibh in iomap->private and incrementing its refcount with get_bh() in gfs2_iomap_begin(). The buffer is then properly released in gfs2_iomap_end() after the inline write completes, ensuring the page stays alive for the entire iomap operation. Note: A C reproducer is not available for this issue. The fix is based on analysis of the KASAN report and code review showing the buffer head is freed before use. [agruenba: Take buffer head reference in gfs2_iomap_begin() to avoid leaks in gfs2_iomap_get() and gfs2_iomap_alloc().]

References

NVD — CVE-2026-45984 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-45984

Software Security Information SECURITY

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45984.json

git.kernel.org/stable/c/faddeb8483... WEB

https://git.kernel.org/stable/c/faddeb848305e79db89ee0479bb0e33380656321

git.kernel.org/stable/c/d87268326b... WEB

https://git.kernel.org/stable/c/d87268326b277af3665237ac76a73dd9fa8e21b4

git.kernel.org/stable/c/87d4954b5c... WEB

https://git.kernel.org/stable/c/87d4954b5c59735a99ea98cb208d47130f6dce7d

git.kernel.org/stable/c/815ddd27c0... WEB

https://git.kernel.org/stable/c/815ddd27c0c7171a99fe802fdb19098ddef8b19d

git.kernel.org/stable/c/764c3c84b5... WEB

https://git.kernel.org/stable/c/764c3c84b5683e608f43735c803a5f415046686c

git.kernel.org/stable/c/6d76febba0... WEB

https://git.kernel.org/stable/c/6d76febba07c40bcf358f63216d36ea68cf1c215

git.kernel.org/stable/c/1cae1bafdf... WEB

https://git.kernel.org/stable/c/1cae1bafdf9caa9b462b19af06b1a06902e4e142

git.kernel.org/stable/c/1403989d1b... WEB

https://git.kernel.org/stable/c/1403989d1b502f4a2c0d0b42ccf1c25748442eff

bugzilla.redhat.com/show_bug.cgi WEB

https://bugzilla.redhat.com/show_bug.cgi?id=2481922

Software Security Information SECURITY

https://access.redhat.com/security/cve/CVE-2026-45984

access.redhat.com/errata/rhsa-2026:63... WEB

https://access.redhat.com/errata/RHSA-2026:63189

access.redhat.com/errata/rhsa-2026:61... WEB

https://access.redhat.com/errata/RHSA-2026:61692

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59149

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59148

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59147

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59146

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59145

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59143

access.redhat.com/errata/rhsa-2026:59... WEB

https://access.redhat.com/errata/RHSA-2026:59142

access.redhat.com/errata/rhsa-2026:55... WEB

https://access.redhat.com/errata/RHSA-2026:55444

access.redhat.com/errata/rhsa-2026:51... WEB

https://access.redhat.com/errata/RHSA-2026:51604

access.redhat.com/errata/rhsa-2026:51... WEB

https://access.redhat.com/errata/RHSA-2026:51603

access.redhat.com/errata/rhsa-2026:38... WEB

https://access.redhat.com/errata/RHSA-2026:38902

access.redhat.com/errata/rhsa-2026:36... WEB

https://access.redhat.com/errata/RHSA-2026:36767

access.redhat.com/errata/rhsa-2026:36... WEB

https://access.redhat.com/errata/RHSA-2026:36049

access.redhat.com/errata/rhsa-2026:35... WEB

https://access.redhat.com/errata/RHSA-2026:35894

access.redhat.com/errata/rhsa-2026:33... WEB

https://access.redhat.com/errata/RHSA-2026:33743

access.redhat.com/errata/rhsa-2026:27... WEB

https://access.redhat.com/errata/RHSA-2026:27789

Frequently Asked Questions

What is CVE-2026-45984?

CVE-2026-45984 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-826: Premature Release of Resource During Expected Lifetime.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-45984?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2026-45984?

CVE-2026-45984 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

What CWE is associated with CVE-2026-45984?

CVE-2026-45984 is classified under CWE-826: Premature Release of Resource During Expected Lifetime (The product releases a resource that is still intended to be used by itself or another actor.).

How can I check Maven dependencies for CVE-2026-45984?

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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CVSS V3

7.8 HIGH

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality High (C:H)

Integrity High (I:H)

Availability High (A:H)

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Advisory Metadata

Source ID: GHSA-c7gf-37rm-rpg6
Schema Version: 1.4.0
Published: 2026-05-27 15:33
Last Modified: 2026-09-04 15:35
Database Record File: advisories/unreviewed/2026/05/GHSA-c7gf-37rm-rpg6/GHSA-c7gf-37rm-rpg6.json