CVE-2026-91881: Flaw in Dell Terraform Provider for Redfish Scores 9 on CVSS
A newly published critical vulnerability in Dell Terraform Provider for Redfish carries a CVSS score of 9. Here is what is affected and how to respond.
Key points
- CVE-2026-91881 affects Dell Terraform Provider for Redfish.
- CVSS 9 (Critical).
- No exploitation confirmed yet.
A critical security flaw tracked as CVE-2026-91881 has been published in the National Vulnerability Database for Dell Terraform Provider for Redfish, with a CVSS base score of 9.
At a glance
- CVE
- CVE-2026-91881
- Product
- Dell Terraform Provider for Redfish
- CVSS
- 9 Critical
- Weakness
- CWE-295
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: Dell Terraform Provider for Redfish, versions prior to 1.6.2, contains an Improper Certificate Validation vulnerability in the HTTP transport component. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to information exposure and unauthorized access. This is a Critical severity vulnerability as it allows an unauthenticated attacker to intercept all Redfish BMC traffic including credentials by performing a man-in-the-middle attack, since TLS certificate verification is unconditionally disabled in the base HTTP transport. Dell recommends customers to upgrade at the earliest opportunity.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Dell | Terraform Provider for Redfish | before 1.6.2 or later |
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-91881
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-91881?
CVE-2026-91881 is a CWE-295 vulnerability in Dell Terraform Provider for Redfish.
How severe is CVE-2026-91881?
It has a CVSS score of 9 Critical.
Is CVE-2026-91881 being exploited?
There is no public confirmation of exploitation at the time of publication.
