CVE-2026-52924: Software Security Vulnerability Vulnerability

CRITICAL

Advisory Identifier: GHSA-v4hw-q98x-8jmm

CVSS 9.8

Published 2026-06-24

Advisory Summary

CVE-2026-52924 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-825: Expired Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52924 at a Glance

CVE Identifier CVE-2026-52924

GHSA Identifier GHSA-v4hw-q98x-8jmm

Severity CRITICAL

CVSS v3.1 Base Score 9.8

CWE Classification CWE-825: Expired Pointer Dereference

Affected Product Software

Package Ecosystem Maven

Published Date 2026-06-24

Last Updated 2026-09-15

Security Impact

CVSS: 9.8

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:H/I:H/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 High (C:H)

Integrity High (I:H)

Availability High (A:H)

How to Fix CVE-2026-52924

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-2026-52924, 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-825: Expired Pointer Dereference, where the product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid. 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: sctp: purge outqueue on stale COOKIE-ECHO handling sctp_stream_update() is only invoked when the association is moved into COOKIE_WAIT during association setup/reconfiguration. In this path, the outbound stream scheduler state (stream->out_curr) is expected to be clean, since no user data should have been transmitted yet unless the state machine has already partially progressed. However, a corner case exists in sctp_sf_do_5_2_6_stale(): when a Stale Cookie ERROR is received, the association is rolled back from COOKIE_ECHOED to COOKIE_WAIT. In this scenario, user data may already have been queued and even bundled with the COOKIE-ECHO chunk. During the rollback, sctp_stream_update() frees the old stream table and installs a new one, but it does not invalidate stream->out_curr. As a result, out_curr may still point to a freed sctp_stream_out entry from the previous stream state. Later, SCTP scheduler dequeue paths (FCFS, RR, PRIO, etc.) rely on stream->out_curr->ext, which can lead to use-after-free once the old stream state has been released via sctp_stream_free(). This results in crashes such as (reported by Yuqi): BUG: KASAN: slab-use-after-free in sctp_sched_fcfs_dequeue+0x13a/0x140 Read of size 8 at addr ff1100004d4d3208 by task mini_poc/9312 CPU: 1 UID: 1001 PID: 9312 Comm: mini_poc Not tainted 7.1.0-rc1-00305-gbd3a4795d574 #5 PREEMPT(full) sctp_sched_fcfs_dequeue+0x13a/0x140 sctp_outq_flush+0x1603/0x33e0 sctp_do_sm+0x31c9/0x5d30 sctp_assoc_bh_rcv+0x392/0x6f0 sctp_inq_push+0x1db/0x270 sctp_rcv+0x138d/0x3c10 Fix this by fully purging the association outqueue when handling the Stale Cookie case. This ensures all pending transmit and retransmit state is dropped, and any scheduler cached pointers are invalidated, making it safe to rebuild stream state during COOKIE_WAIT restart. Updating only stream->out_curr would be insufficient, since queued and retransmittable data would still reference the old stream state and trigger later use-after-free in dequeue paths.

References

NVD — CVE-2026-52924 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-52924

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

https://access.redhat.com/errata/RHSA-2026:59723

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

https://access.redhat.com/errata/RHSA-2026:59737

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

https://access.redhat.com/errata/RHSA-2026:59821

access.redhat.com/errata/rhsa-2026:67... WEB

https://access.redhat.com/errata/RHSA-2026:67471

Software Security Information SECURITY

https://access.redhat.com/security/cve/CVE-2026-52924

bugzilla.redhat.com/show_bug.cgi WEB

https://bugzilla.redhat.com/show_bug.cgi?id=2492095

git.kernel.org/stable/c/1d4652f677... WEB

https://git.kernel.org/stable/c/1d4652f677906a64487c13f9ace54b0eb263b5d0

git.kernel.org/stable/c/2afc9e684d... WEB

https://git.kernel.org/stable/c/2afc9e684dc7fecf73db1edc937ebbc47b4b68dc

git.kernel.org/stable/c/3c0741a441... WEB

https://git.kernel.org/stable/c/3c0741a441a7df7099d7ca6a64a6a0de09c677c8

git.kernel.org/stable/c/83ade59e5d... WEB

https://git.kernel.org/stable/c/83ade59e5da365f4bf8bce72c5a38774202b442f

git.kernel.org/stable/c/84b7a31910... WEB

https://git.kernel.org/stable/c/84b7a319105db2f917ccdcf502bdc866082b1285

git.kernel.org/stable/c/a6207349e7... WEB

https://git.kernel.org/stable/c/a6207349e703cfc04756a4d16dec9176135813a5

git.kernel.org/stable/c/e374b22e9b... WEB

https://git.kernel.org/stable/c/e374b22e9b07b72a25909621464ff74096151bfb

git.kernel.org/stable/c/f46e1d1a75... WEB

https://git.kernel.org/stable/c/f46e1d1a758878f0d22c4fbbd1bf42bb7165d1e8

Software Security Information SECURITY

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52924.json

Frequently Asked Questions

What is CVE-2026-52924?

CVE-2026-52924 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-825: Expired Pointer Dereference.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-52924?

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

What is the CVSS score of CVE-2026-52924?

CVE-2026-52924 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

What CWE is associated with CVE-2026-52924?

CVE-2026-52924 is classified under CWE-825: Expired Pointer Dereference (The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.).

How can I check Maven dependencies for CVE-2026-52924?

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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  "aliases" : [ "CVE-2026-52924" ],
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    "type" : "WEB",
    "url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52924.json"
  } ],
  "database_specific" : {
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    "github_reviewed_at" : null,
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  }
}

CVSS V3

9.8 CRITICAL

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 High (C:H)

Integrity High (I:H)

Availability High (A:H)

Vector String

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

Advisory Metadata

Source ID: GHSA-v4hw-q98x-8jmm
Schema Version: 1.4.0
Published: 2026-06-24 09:30
Last Modified: 2026-09-15 12:31
Database Record File: advisories/unreviewed/2026/06/GHSA-v4hw-q98x-8jmm/GHSA-v4hw-q98x-8jmm.json