Vulnerability · Published Aug 31, 2026 · Assigned by VulnCheck
CVE-2026-82859hulumi before v1.3.2 SCP Template Tag-on-Create Bypass
Critical 9.8
In plain English
A critical-severity improper access control in hulumi from kerberosmansour. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 54.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
hulumi versions before v1.3.2 contain a deployment SCP template that allows tag-on-create bypasses for hulumi:iac-role protections. Attackers can bypass intended IAM boundary restrictions by exploiting the weakened SCP template in downstream deployments.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| kerberosmansour | hulumi | 0 – before 1.3.2 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-86q4-r5j3-ff5c) vendor-advisory
- VulnCheck Advisory: hulumi before v1.3.2 SCP Template Tag-on-Create Bypass third-party-advisory