CVE-2026-82860Network attack vector

Unauthenticated admin-policy bypass via incomplete IAM inspection

Published Aug 31, 2026 · Updated Aug 31, 2026

Improper privilege management in Pulumi Policies before 1.3.2 allows remote attackers to bypass administrator-policy guardrails. The administrator-policy guardrail validator incompletely inspects inline and attached IAM policy evidence, allowing crafted admin-equivalent policy paths to pass evaluation. No privileges or user interaction are required, and successful bypass permits administrator-equivalent policies to evade the intended control.

CVSS severity9.3
Critical
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Pulumi Policies before 1.3.2 allows remote attackers to bypass administrator-policy guardrails. The administrator-policy guardrail validator incompletely inspects inline and attached IAM policy evidence, allowing crafted admin-equivalent policy paths to pass evaluation. No privileges or user interaction are required, and successful bypass permits administrator-equivalent policies to evade the intended control.

The record

CVE
CVE-2026-82860
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Pulumi
Product
Pulumi Policies
Classifications
CWE-269, T1548
Attack vector
network
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?

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  1. Affected versionversion=0 <1.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pulumi · Pulumi Policiesversion=0 <1.3.2

Published CVSS scores

9.8VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheck CNACVSS:4.0/AV:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1548Abuse Elevation Control Mechanism

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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