A security vulnerability has been detected in Dask up to 2026.8.0. This affects the function from_npy_stack of the file dask/array/core.py of the component Loader. Such manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a Dask affected
Version Status Constraints
2026.0 affected —
2026.1 affected —
2026.2 affected —
2026.3 affected —
2026.4 affected —
2026.5 affected —
2026.6 affected —
2026.7 affected —
2026.8.0 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Dask Subscribe
Dask Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/dask/dask/ cve-icon cve-icon
https://github.com/dask/dask/issues/12578 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-95897 cve-icon cve-icon
https://vuldb.com/submit/953281 cve-icon cve-icon
https://vuldb.com/vuln/408543 cve-icon cve-icon
https://vuldb.com/vuln/408543/cti cve-icon cve-icon
History

Wed, 23 Sep 2026 01:00:00 +0000

Type Values Removed Values Added
Description A security vulnerability has been detected in Dask up to 2026.8.0. This affects the function from_npy_stack of the file dask/array/core.py of the component Loader. Such manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Title Dask Loader core.py from_npy_stack deserialization
First Time appeared Dask
Dask dask
Weaknesses CWE-20
CWE-502
CPEs cpe:2.3:a:dask:dask:*:*:*:*:*:*:*:*
Vendors & Products Dask
Dask dask
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-23T00:30:14.623Z

Reserved: 2026-09-22T17:07:14.182Z

Link: CVE-2026-95897

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-23T01:16:31.920

Modified: 2026-09-23T01:16:31.920

Link: CVE-2026-95897

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses