Hijacking Vertex AI Model Uploads for Cross-Tenant RCE


Palo Alto Unit42 discovered a vulnerability in the Google Cloud Vertex AI software development kit (SDK) for Python, and responsibly disclosed it to Google. Before Google’s fix, the vulnerability would have allowed an attacker operating entirely from their own Google Cloud project to hijack a victim’s model upload and poison it. By exploiting this flaw in vulnerable versions of the SDK, an attacker can achieve remote code execution (RCE) within a target’s Vertex AI serving infrastructure, with zero initial access to the victim’s project.

Read more…
Source:  Palo Alto Unit 42


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • ToolShell: a story of five vulnerabilities in Microsoft SharePoint

    July 25, 2025

    On July 19–20, 2025, various security companies and national CERTs published alerts about active exploitation of on-premise SharePoint servers. According to the reports, observed attacks did not require authentication, allowed attackers to gain full control over the infected servers, and were performed using an exploit chain of two vulnerabilities: CVE-2025-49704 and CVE-2025-49706, publicly named “ToolShell”. Additionally, ...

  • Mitel Releases Security Advisories for MiVoice MX-One and MiCollab

    July 24, 2025

    Mitel has released security advisories to address vulnerabilities in Mitel MiVoice MX-ONE and MiCollab, which are cloud-based platforms that help manage business communications. The critical vulnerability, which has no CVE identifier at the time of publishing this Cyber Alert, affects Mitel MiVoice MX-One and is an authentication bypass vulnerability with a CVSSv3 score of 9.4. Successful ...

  • Disrupting active exploitation of on-premises SharePoint vulnerabilities

    July 23, 2025

    Expanded analysis and threat intelligence from Microsoft continued monitoring of exploitation activity by Storm-2603 leading to the deployment of Warlock ransomware. Based on new information, we have updated the Attribution, Indicators of compromise, extended and clarified Mitigation and protection guidance (including raising Step 6: Restart IIS for emphasis), Detections, and Hunting sections. Read more… Source: Microsoft Sign up for ...

  • Hundreds of organizations breached by SharePoint mass-hacks

    July 23, 2025

    Security researchers say hackers have breached at least 400 organizations by exploiting a zero-day vulnerability in Microsoft SharePoint, signaling a sharp rise in the number of detected compromises since the bug was discovered last week. Eye Security, a Dutch cybersecurity firm that first identified the vulnerability in SharePoint, a popular server software that companies use to ...

  • Microsoft releases urgent SharePoint security flaw patches

    July 21, 2025

    Microsoft has released an urgent patch to fix a zero-day vulnerability affecting on-premises SharePoint servers. The vulnerability is already being exploited in the wild, which is why users are urged to apply the patch immediately and secure their assets. Three Microsoft products were said to be affected: SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint ...

  • CVE-2025-54309: CrushFTP Zero-Day Exploited in the Wild

    July 18, 2025

    On Friday, July 18, 2025, managed file transfer vendor CrushFTP released information to a private mailing list on a new critical vulnerability, tracked as CVE-2025-54309, affecting versions below 10.8.5 and 11.3.4_23 across all platforms. According to the public-facing vendor advisory, this vulnerability in the CrushFTP managed file transfer software web interface is being exploited in the ...