CVE-2026-22049Network attack vector

Authenticated MFA bypass via unrestricted relying-party domains

Published Jul 22, 2026 · Updated Jul 22, 2026

Authentication bypass in NetApp ONTAP 9.16.1 through 9.18.1 allows remote authenticated users to bypass WebAuthn MFA in System Manager. The WebAuthn flow accepts relying-party domains without restricting them to an administrator-approved set, allowing a valid first-factor session to evade the registered FIDO2 challenge. Exploitation requires valid credentials and a cluster with WebAuthn MFA enabled; the bypass grants the account's existing ONTAP access without the second factor.

CVSS severity8.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in NetApp ONTAP 9.16.1 through 9.18.1 allows remote authenticated users to bypass WebAuthn MFA in System Manager. The WebAuthn flow accepts relying-party domains without restricting them to an administrator-approved set, allowing a valid first-factor session to evade the registered FIDO2 challenge. Exploitation requires valid credentials and a cluster with WebAuthn MFA enabled; the bypass grants the account's existing ONTAP access without the second factor.

The record

CVE
CVE-2026-22049
Published
Jul 22, 2026
Updated
Jul 22, 2026
Vendor
NetApp
Product
ONTAP
Classifications
CWE-288, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.16.1 <9.19.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NetApp · ONTAPversion=9.16.1 <9.19.1

Published CVSS scores

8.7NetApp, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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