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NTAP-20260924-0030 — CVE-2026-15588 GLib Vulnerability in NetApp Products

Published 2026-09-24 · Updated 2026-10-02 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.3 · ONTAP affected: Yes

Official advisory: NTAP-20260924-0030 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Baseboard management controllers · Active IQ Unified Manager · Brocade SAN firmware · ONTAP · Other NetApp products · NetApp Console / BlueXP · SolidFire / NetApp HCI · SnapCenter | ONTAP-relevant | highest CVSS: 5.3

CVEs in this advisory

CVE-2026-15588 — MEDIUM · CVSS 5.3 · site index

What the CVE records say

CVE-2026-15588 — A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data or Denial of Service (DoS).

Affected products

AFF/ASA/FAS Baseboard Management Controller (BMC) - A1K/A90/A70/C80/FAS90/FAS70
Active IQ Unified Manager for VMware vSphere
Brocade Fabric Operating System Firmware
Cloud Volumes ONTAP Mediator
FAS/AFF BIOS - A900/9500
FAS/AFF Baseboard Management Controller (BMC) - A800/C800
FAS/AFF Baseboard Management Controller (BMC) - A900/9500
FAS/AFF Baseboard Management Controller (BMC) - C190/A150/A220/FAS2720/FAS2750
FAS/AFF Baseboard Management Controller (BMC) - FAS2820
NetApp Console Agent Container (mysql)
NetApp Console Agent OVA
NetApp SolidFire & HCI Management Node

References

https://access.redhat.com/security/cve/CVE-2026-15588 ↗

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.