Pure Storage FlashArray up to 6.5.8/6.10.5 improper authorization in handler for custom url scheme

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.8$0-$5k3.79

Summaryinfo

A vulnerability was found in Pure Storage FlashArray up to 6.5.8/6.10.5. It has been rated as very critical. Affected by this vulnerability is an unknown functionality. This manipulation causes improper authorization in handler for custom url scheme. This vulnerability is registered as CVE-2026-6445. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in Pure Storage FlashArray up to 6.5.8/6.10.5 and classified as very critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a improper authorization in handler for custom url scheme vulnerability. The CWE definition for the vulnerability is CWE-939. The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A flaw exists in FlashArray Purity where insufficient filtering of certain data paths could expose sensitive information to an authenticated user with low privileges.

The advisory is shared at support.purestorage.com. This vulnerability is known as CVE-2026-6445 since 04/16/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization in handler for custom url scheme
CWE: CWE-939 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2026 CVE reserved
06/09/2026 +54 days Advisory disclosed
06/09/2026 +0 days VulDB entry created
06/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.purestorage.com
Status: Confirmed

CVE: CVE-2026-6445 (🔒)
GCVE (CVE): GCVE-0-2026-6445
GCVE (VulDB): GCVE-100-369985

Entryinfo

Created: 06/09/2026 21:51
Changes: 06/09/2026 21:51 (63)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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