CVE-2026-82862

Local code execution via workspace helper shadowing

Published Aug 31, 2026 · Updated Aug 31, 2026

Untrusted search path handling in Hulumi before 1.3.2 allows local users to execute arbitrary code through workspace files. The /hulumi-threat-model skill resolves its helper script from an unsafe root, so a workspace file can shadow the intended helper during local skill execution. Exploitation requires write access to a workspace later used for the skill and runs code with the privileges of the Hulumi process.

CVSS severity8.6
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted search path handling in Hulumi before 1.3.2 allows local users to execute arbitrary code through workspace files. The /hulumi-threat-model skill resolves its helper script from an unsafe root, so a workspace file can shadow the intended helper during local skill execution. Exploitation requires write access to a workspace later used for the skill and runs code with the privileges of the Hulumi process.

The record

CVE
CVE-2026-82862
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Sherif Mansour
Product
Hulumi
Classifications
CWE-426, T1574.008
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 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=0 <1.3.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Sherif Mansour · Hulumiversion=0 <1.3.2

Published CVSS scores

8.4VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
T1574.008Path Interception by Search Order Hijacking

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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