# CVE-2026-76052: IBM Storage Scale authentication bypass in REST API

Source: https://junglewise.ai/threats/cve-2026-76052-ibm-storage-scale-system-6-2-3-0-through-6-2-3-6-and-7-0-0-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-08. Updated: 2026-11-08  
License: CC BY 4.0 with a link back

CVE-2026-76052 · Severity: medium · CVSS 6 · Published 2026-11-08

IBM Storage Scale is a distributed file storage system used by enterprises for data management. An undocumented flag in the management interface allows attackers with high privileges to bypass authentication and access the REST API without credentials, potentially exposing or modifying stored data.

Technologies: [IBM Storage Scale](https://junglewise.ai/threats/technologies/storage-scale). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-76052 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76052 being exploited in the wild.

**How severe is CVE-2026-76052?** Medium severity, with a CVSS score of 6, published 8 November 2026.

**Which products and versions are affected?** IBM Storage Scale System 6.2.3.0 through 6.2.3.6, 7.0.0.0 through 7.0.1.0; IBM Storage Scale 5.2.3.0 through 5.2.3.8, 6.0.0.0 through 6.0.1.0.

**Is there a fix for CVE-2026-76052?** Yes: fixed in IBM Storage Scale 5.2.3.9 or later, 6.0.1.1 or later; IBM Storage Scale System 6.2.3.7 or later, 7.0.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-76052 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-76052?** Check whether you run IBM Storage Scale System or IBM Storage Scale at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in IBM Storage Scale 5.2.3.9 or later, 6.0.1.1 or later; IBM Storage Scale System 6.2.3.7 or later, 7.0.1.1 or later

## Technical details

An undocumented flag in IBM Storage Scale GUI creates an alternate, unauthenticated path to the REST API (CWE-288: Authentication Bypass Using an Alternate Path or Channel). The vulnerability requires local access and high privileges to exploit, affecting multiple versions of Storage Scale and Storage Scale System. A fix is available in the specified patched versions.

## Affected products

- IBM Storage Scale System 6.2.3.0 through 6.2.3.6, 7.0.0.0 through 7.0.1.0
- IBM Storage Scale 5.2.3.0 through 5.2.3.8, 6.0.0.0 through 6.0.1.0

## Timeline

- 2026-11-08: disclosed

## References

- [https://www.ibm.com/support/pages/node/7295211](https://www.ibm.com/support/pages/node/7295211)

## Related threats

- [IBM Storage Scale improper TLS certificate validation](https://junglewise.ai/threats/cve-2026-14375-ibm-storage-scale-5-2-3-0-through-5-2-3-8-and-6-0-1-0-does-not)
- [IBM Storage Scale credential disclosure in log files](https://junglewise.ai/threats/cve-2026-19483-ibm-storage-scale-credential-disclosure-in-log-files)