# CVE-2026-82862: Hulumi threat-model helper script shadowing vulnerability

Source: https://junglewise.ai/threats/cve-2026-82862-hulumi-threat-model-helper-script-shadowing-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-31. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-82862 · Severity: high · CVSS 8.4 · Published 2026-08-31

Hulumi is a skill pack framework that executes helper scripts during local operations. Versions before 1.3.2 load the threat-model helper script from an unsafe directory path, allowing an attacker to place a malicious file in the workspace that shadows (replaces) the intended helper. An attacker who can modify workspace files can execute arbitrary code during skill execution.

Technologies: [Kerberosmansour Hulumi](https://junglewise.ai/threats/technologies/hulumi). Vendors: [Kerberosmansour](https://junglewise.ai/threats/vendors/kerberosmansour).

## Quick answers

**Is CVE-2026-82862 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82862 being exploited in the wild.

**How severe is CVE-2026-82862?** High severity, with a CVSS score of 8.4, published 31 August 2026.

**Which products and versions are affected?** Kerberosmansour Hulumi before 1.3.2.

**Is there a fix for CVE-2026-82862?** A patch was published on 2026-05-15: Fix released in v1.3.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-82862 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-82862?** Check whether you run Kerberosmansour Hulumi at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an untrusted search path issue (CWE-426) in which Hulumi resolves the /hulumi-threat-model helper script from an unsafe root directory before checking the intended skill directory. An attacker can place a malicious file with the same name in the workspace directory, causing it to be loaded and executed instead of the legitimate helper during local skill execution. No authentication or special privileges are required; the attack requires only the ability to modify files in the workspace. The vendor patched this in v1.3.2 by anchoring helper resolution to the skill directory, eliminating the shadowing attack surface.

## Affected products

- kerberosmansour Hulumi before 1.3.2

## Timeline

- 2026-05-15: disclosed: GHSA advisory published
- 2026-05-15: patched: Fix released in v1.3.2
- 2026-08-31: advisory: CVE-2026-82862 published

## References

- [https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-mjcg-x5mr-27ww](https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-mjcg-x5mr-27ww)
- [https://www.vulncheck.com/advisories/hulumi-before-1.3.2-helper-script-shadowing-via-workspace-files](https://www.vulncheck.com/advisories/hulumi-before-1.3.2-helper-script-shadowing-via-workspace-files)

## Related threats

- [hulumi privilege escalation in weekly integration IAM policy](https://junglewise.ai/threats/cve-2026-82857-hulumi-privilege-escalation-in-weekly-integration-iam-policy)
- [kerberosmansour Hulumi security policy bypass via decoy sibling resources](https://junglewise.ai/threats/cve-2026-48034-kerberosmansour-hulumi-security-policy-bypass-via-decoy-sibling)
- [kerberosmansour Hulumi policy bypass via forged Pulumi-URN logical name](https://junglewise.ai/threats/cve-2026-48033-kerberosmansour-hulumi-policy-bypass-via-forged-pulumi-urn)