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NTAP-20261006-0011 — CVE-2026-35189 OpenSSL Vulnerability in NetApp Products

Published 2026-10-06 · Updated 2026-10-06 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.3 · ONTAP affected: Yes

Official advisory: NTAP-20261006-0011 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

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

CVEs in this advisory

CVE-2026-35189 — MEDIUM · CVSS 5.3 · site index

What the CVE records say

CVE-2026-35189 — Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of Service in clients or in servers that solicit client certificates. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: A certificate or a set of certificates that fits under the limit for size of certificates accepted from the peer (~100 KiB) can result in allocation of several hundred MiB of resident memory on the receiving side during a normal TLS handshake. This may be enough to crash the client or server, if multiple concurrent connections lead to similarly large memory allocations. The fix postpones processing of the CRL distribution points extensions in certificates to the time when the processed value is required for CRL processing. This avoids keeping large memory allocations for a long time when such certificates are received. FIPS impact: no The affected code is outside the FIPS module boundary.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

Affected products

Active IQ Unified Manager for Linux
Active IQ Unified Manager for VMware vSphere
E-Series SANtricity OS Controller Software
NetApp Console Agent Container (e-series)
NetApp HCI Baseboard Management Controller (BMC) - H610S
ONTAP 9
ONTAP Select Deploy administration utility
AFF BIOS - A700s
AFF Baseboard Management Controller (BMC) - A700s
AFF/ASA/FAS Baseboard Management Controller (BMC) - A1K/A90/A70/C80/FAS90/FAS70
AFF/ASA/FAS Baseboard Management Controller (BMC) - A50/A30/A20/C60/C30/FAS50
Active IQ Config Advisor

References

https://openssl-library.org/news/secadv/20260929.txt ↗

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.