CVE-2026-48036CWE-755

Hulumi: Drift classifier fails open on adapter errors and over-promotes Mixed verdicts

High · published July 24, 2026

CVSS v4.0
8.4
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

Hulumi is an open-source toolkit that ships secure-by-default cloud and platform infrastructure components for Pulumi. Prior to version 1.4.0, consumers running drift detection in CI / cron could see transient adapter failures silently cached as "all clear" — masking real attacks for up to six hours — or see ordinary provider-version churn falsely promoted to incident severity. Either way, the verdict source was unreliable for downstream incident workflows that gate on it. This issue has been patched in version 1.4.0.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L
EPSS
0.00511 · 42.7th percentile
Weakness
CWE-755 · Improper Handling of Exceptional Conditions
Published
2026-07-24T18:44Z
EPSS history
Timeline
  • 24 JUL 18:44Z
    Hulumi: Drift classifier fails open on adapter errors and over-promotes Mixed verdicts
    cvelistv5