What is CVE-2026-82857?

CVE-2026-82857 is a critical-severity vulnerability in Kerberosmansour Hulumi, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-08-31.

How severe is CVE-2026-82857?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Privilege escalation in Kerberosmansour Hulumi

CVE-2026-82857

hulumi versions before v1.3.2 contain a privilege escalation vulnerability in the weekly integration IAM policy that allows role lifecycle operations on af-e2e-* roles without sufficient boundary restrictions. Attackers with the documented principal can create persistent higher-privilege roles in the sandbox account.

Vulnerability class: Privilege Escalation

EPSS: 0.003 (20.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kerberosmansour Hulumi

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-82857?: CVE-2026-82857 is a critical-severity vulnerability in Kerberosmansour Hulumi, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-08-31.
How severe is CVE-2026-82857?: Critical severity. CVSS v3 base score is 9.8 out of 10.