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VulnerabilityPublished

CVE-2026-2244: Google Cloud Vertex AI Workbench · Information Exposure

Affects Google Cloud Vertex AI WorkbenchSource CVE Database V5

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Not known to be exploited · CVSS 8.4 High : upgrade to 01/30/2026 soon.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 4.0 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 01/30/2026
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/U:Clear

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Google Cloud Vertex AI Workbench to 01/30/2026.

Affected software

ProductAffectedFixed in
Google CloudVertex AI WorkbenchAffected
  • ≥ 7/21/2025, < 01/30/2026
Fixed in
  • 01/30/2026

AI-suggested

To mitigate CVE-2026-2244, organizations should ensure that all Vertex AI Workbench instances are updated to versions deployed after January 30, 2026, where the vulnerability has been patched. Administrators should audit existing instances to confirm the absence of vulnerable startup scripts and revoke any potentially compromised access tokens issued during the vulnerable period. Implement strict monitoring and alerting for unusual token usage or access patterns within Google Cloud environments. Employ the principle of least privilege for service accounts and users to limit the impact of token compromise. Additionally, consider enabling token expiration and rotation policies to reduce the window of opportunity for attackers. Regularly review and harden startup scripts and automation workflows to prevent unauthorized code execution or token exposure. Finally, educate users about the risks of interacting with untrusted scripts or environments that could trigger this vulnerability.

Description

A vulnerability in Google Cloud Vertex AI Workbench from 7/21/2025 to 01/30/2026 allows an attacker to exfiltrate valid Google Cloud access tokens of other users via abuse of a built-in startup script. All instances after January 30th, 2026 have been patched to protect from this vulnerability. No user action is required for this.

References

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