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Advisory record · GHSA-wh2j-26j7-9728

Google Cloud Vertex AI has a a vulnerability involving predictable bucket naming

CVSS 7.7 HighEPSS 0.0051 · 43rd percentile

Published by the GitHub Advisory Database at 20 Feb 2026, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
google-cloud-aiplatformPyPI>=1.21.0, <1.133.01.133.0
Identifiers
GHSA-wh2j-26j7-9728 · CVE-2026-2473 · PYSEC-2026-2500
Weakness (CWE)
CWE-340
Tags
Published
20 Feb 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The google-cloud-aiplatform package, versions 1.21.0 up to but not including 1.133.0, uses predictable Cloud Storage bucket names in Vertex AI Experiments. An unauthenticated remote attacker who pre-creates those buckets can achieve cross-tenant code execution, model theft, and model poisoning. Upgrade to 1.133.0 or later.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/U:Clear CNA (GoogleCloud)
  • CISA KEV Not listed.
  • EPSS 0.0051, the 43rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:34 UTC First seen by agentprime
  2. 31 Oct 2026, 14:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.