CVE-2026-95897
Dask Loader core.py from_npy_stack deserialization
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 profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Dask Loader core.py from_npy_stack deserialization
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.
- Record
CVE-2026-95897- CVSS 4.0
- 5.1 Medium
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 3.1
- 5.5 Medium
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 3.0
- 5.5 Medium
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 2.0
- 6.5
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR - Weakness
- CWE-502, CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2026-84993
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.
- Record
EUVD-2026-84993- CVSS 4.0
- 5.1 Medium
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7jm5-7xjw-qq97
A security vulnerability has been detected in Dask up to 2026.8.0. This affects the function...
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.
- Record
GHSA-7jm5-7xjw-qq97- CVSS 4.0
- 2.0 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-95897- CVSS 4.0
- 2.0 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-20, CWE-502
- Updated
- 2026-11-02
OSV
Dask Loader core.py from_npy_stack deserialization
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.
- Record
CVE-2026-95897- CVSS 4.0
- 2.0 Low
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 - Weakness
- CWE-20, CWE-502
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-95897
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.
- Record
DEBIAN-CVE-2026-95897- CVSS 4.0
- 2.0 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-95897
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.
- Record
UBUNTU-CVE-2026-95897- CVSS 4.0
- 2.0 Low
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 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
daskDebian:12 |
All versions, plus listed versions 2022.12.1+dfsg-22023.12.1+dfsg-12023.12.1+dfsg-22023.8.0+dfsg-12023.8.0+dfsg-2 Show 7 moreShow less2024.1.1+dfsg-12024.12.1+dfsg-12024.12.1+dfsg-22024.12.1+dfsg-32024.12.1+dfsg-42024.12.1+dfsg-62024.5.2+dfsg-1 |
None known |
daskDebian:13 |
All versions, plus listed versions 2024.12.1+dfsg-22024.12.1+dfsg-32024.12.1+dfsg-42024.12.1+dfsg-6 |
None known |
daskDebian:14 |
All versions, plus listed versions 2024.12.1+dfsg-22024.12.1+dfsg-32024.12.1+dfsg-42024.12.1+dfsg-6 |
None known |
daskUbuntu:18.04:LTS |
All versions, plus listed versions 0.15.1-30.15.4-10.16.0-1 |
None known |
daskUbuntu:20.04:LTS |
All versions, plus listed versions 1.0.0+dfsg-22.8.0-0ubuntu42.8.1+dfsg-0.2ubuntu12.8.1+dfsg-0.32.8.1+dfsg-0.4 |
None known |
daskUbuntu:22.04:LTS |
All versions, plus listed versions 2021.01.0+dfsg-1ubuntu12021.09.1+dfsg-1ubuntu12021.09.1+dfsg-1ubuntu22022.01.0+dfsg-12022.01.0+dfsg-1ubuntu1 |
None known |
daskUbuntu:24.04:LTS |
All versions, plus listed versions 2023.8.0+dfsg-22023.12.1+dfsg-2 |
None known |
daskUbuntu:26.10 |
All versions, plus listed versions 2024.12.1+dfsg-2build12024.12.1+dfsg-32024.12.1+dfsg-4 |
None known |
daskUbuntu:26.04:LTS |
All versions, plus listed versions 2024.12.1+dfsg-22024.12.1+dfsg-2build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-95897 is a medium vulnerability (CVSS 5.1) in dask, published September 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.