CVE-2026-95897

Dask Loader core.py from_npy_stack deserialization

Assigner: VulDB
Reserved: 22.09.2026 Published: 23.09.2026 Updated: 23.09.2026

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.

Metrics

CVSS 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
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

CVSS 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
CVSS Score: 5.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	Required	Availability Impact	Low

CVSS 3.1

CVSS 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
CVSS Score: 5.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	Required	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CVSS Score: 6.5

Access Vector	Network	Confidentiality Impact	Partial
Access Complexity	Low	Integrity Impact	Partial
Authentication	Single	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	n/a
Product	Dask
Versions	Version 2026.0 is affected Version 2026.1 is affected Version 2026.2 is affected Version 2026.3 is affected Version 2026.4 is affected Version 2026.5 is affected Version 2026.6 is affected Version 2026.7 is affected Version 2026.8.0 is affected

Vendor

n/a

Product

Dask

Versions

Version 2026.0 is affected
Version 2026.1 is affected
Version 2026.2 is affected
Version 2026.3 is affected
Version 2026.4 is affected
Version 2026.5 is affected
Version 2026.6 is affected
Version 2026.7 is affected
Version 2026.8.0 is affected

Credits

__lbz__ (VulDB User) reporter
VulDB CNA Team coordinator

References

Problem Types