CVE-2026-10705Network attack vector

Service interruption via truncated HLL hashes

Published Jun 3, 2026 · Updated Jun 3, 2026

Resource consumption in Dask 3.0 allows remote authenticated users to interrupt analytics workloads through nunique_approx input. The compute_hll_array path casts deterministic 64-bit pandas row hashes to uint32, discarding half the bits before HyperLogLog state calculation. Reachability requires a network-exposed workflow that accepts attacker-controlled dataframe values, and the published impact is limited to partial availability loss.

CVSS severity2.3
Low
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource consumption in Dask 3.0 allows remote authenticated users to interrupt analytics workloads through nunique_approx input. The compute_hll_array path casts deterministic 64-bit pandas row hashes to uint32, discarding half the bits before HyperLogLog state calculation. Reachability requires a network-exposed workflow that accepts attacker-controlled dataframe values, and the published impact is limited to partial availability loss.

The record

CVE
CVE-2026-10705
Published
Jun 3, 2026
Updated
Jun 3, 2026
Vendor
Dask
Product
Dask
Classifications
CWE-404, CWE-400, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dask · Daskversion=3.0

Published CVSS scores

3.1VulDBCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
2.1VulDBAV:N/AC:H/Au:S/C:N/I:N/A:P
2.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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