What is CVE-2026-82858?

CVE-2026-82858 is a critical-severity vulnerability in Hulumi Drift, classified under Insufficient Verification of Data Authenticity. CVSS score: 9.8/10. Published 2026-08-31.

How severe is CVE-2026-82858?

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

Vulnerability in Hulumi Drift

CVE-2026-82858

@hulumi/drift versions before 1.3.2 accept externally supplied execute plans without sufficient provenance validation, allowing untrusted reconciliation input to be treated as trusted. Attackers can supply malicious execute plans that bypass security checks to perform unsafe reconciliation operations.

EPSS: 0.002 (8.5th 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

Hulumi Drift

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

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

Frequently asked questions

What is CVE-2026-82858?: CVE-2026-82858 is a critical-severity vulnerability in Hulumi Drift, classified under Insufficient Verification of Data Authenticity. CVSS score: 9.8/10. Published 2026-08-31.
How severe is CVE-2026-82858?: Critical severity. CVSS v3 base score is 9.8 out of 10.