FlashBlade Authentication Mechanism Vulnerability
Priority MEDIUM 48CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
A flaw exists in FlashBlade whereby a local account is permitted to authenticate to the management interface using an unintended method that allows an attacker to gain privileged access to the array.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00384 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Pure Storage | FlashBlade | 3.3.5 – 3.3.10; 4.0.4 – 4.0.6; 4.1.0 – 4.1.8; 4.2.0 – 4.2.2 | — | No fix listed | CNA |
- FlashBlade VendorPure Storage Affected 3.3.5 – 3.3.10; 4.0.4 – 4.0.6; 4.1.0 – 4.1.8; 4.2.0 – 4.2.2 Fixed in — No fix listed CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:purestorage:flashblade:*:*:*:*:*:*:*:* | — | — | Pure Storage |
- cpe:2.3:a:purestorage:flashblade:*:*:*:*:*:*:*:* Versions — — ·Pure Storage
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-4976
- 2026-10-03 Alias added: GHSA-57c8-7jwm-wc5w
References
More Pure Storage vulnerabilities
- TI-2024-00002 Improper authentication in Pure Storage FlashArray CVSS 3.1CRITICAL 10.0
- TI-2024-02863 A flaw exists whereby a user can make a specific call to a FlashArray endpoint allowing privilege escalation. CVSS 3.1CRITICAL 9.8
- TI-2024-00001 A condition exists in FlashArray Purity whereby a local account intended for initial… CVSS 3.1CRITICAL 10.0
- TI-2022-14185 Pure Storage FlashArray products running Purity//FA 6.2.0 - 6.2.3, 6.1.0 - 6.1.12, 6.0.0… CVSS 3.1CRITICAL 9.8
- TI-2025-00028 FlashArray DOS Vulnerability CVSS 4.0HIGH 8.7
- TI-2022-13449 The PureStorage-OpenConnect/swagger repository through 1.1.5 on GitHub allows absolute… CVSS 3.1CRITICAL 9.3
Sources
- CVE-2023-4976 · CVE Program
- CVE-2023-4976 · NVD
- FIRST EPSS
- GHSA-57c8-7jwm-wc5w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences