Medium
dask — security advisory
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.
- Products
- dask
- Affected versions
- 0.15.1-3, 0.15.4-1, 0.16.0-1, 1.0.0+dfsg-2, 2.8.0-0ubuntu4, 2.8.1+dfsg-0.2ubuntu1, 2.8.1+dfsg-0.3, 2.8.1+dfsg-0.4, 2021.01.0+dfsg-1ubuntu1, 2021.09.1+dfsg-1ubuntu1, 2021.09.1+dfsg-1ubuntu2, 2022.01.0+dfsg-1, 2022.01.0+dfsg-1ubuntu1, 2023.12.1+dfsg-2, 2023.8.0+dfsg-2, 2024.12.1+dfsg-2, 2024.12.1+dfsg-2build1, 2024.12.1+dfsg-3, 2024.12.1+dfsg-4
- Fixed versions
- Not specified
- CVEs
- CVE-2026-95897
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:34 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-95897
dask
Fixed versions: Not specified
dask
Fixed versions: Not specified
dask
Fixed versions: Not specified
dask
Fixed versions: Not specified
dask
Fixed versions: Not specified
dask
Fixed versions: Not specified
Complete source record
{
"id": "8fb1ed03dc9ea90dfcb52457b0f3cdabbcb14ff948f1651b75fa1b930aaf93f1",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-95897",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-95897",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-95897",
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{
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V4",
"score": "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"
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{
"type": "Ubuntu",
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"affected": [
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},
"versions": [
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],
"modified": "2026-10-17T13:01:19.587916226Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-95897",
"https://www.cve.org/CVERecord?id=CVE-2026-95897",
"https://github.com/dask/dask/",
"https://github.com/dask/dask/issues/12578",
"https://vuldb.com/cve/CVE-2026-95897",
"https://vuldb.com/submit/953281",
"https://vuldb.com/vuln/408543",
"https://vuldb.com/vuln/408543/cti"
]
},
"related_cves": [
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"value": "CVE-2026-95897",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361689,
"published_at": "2026-09-23T01:16:00+00:00"
}