CVE-2026-96893
Received Received - Intake

Authenticated AI Agent Instruction Injection in GitLab EE

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to inject specially crafted content into AI agent instructions, potentially causing unintended command execution attributed to other users, due to improper neutralization of special elements in AI conversation context construction.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-96893
EUVD
EUVD-2026-98213

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
GitLab GitLab 19.1
GitLab GitLab 19.3
GitLab GitLab 19.4

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in GitLab EE allows an authenticated user to inject crafted content into AI agent instructions. This could lead to unintended command execution being attributed to other users due to improper handling of special elements in AI conversation context.

Impact Analysis

An attacker could manipulate AI agents to execute unauthorized commands under another user's identity. This may result in data breaches, unauthorized access, or actions performed without consent, affecting system integrity and trust.

Compliance Impact

This vulnerability could lead to unauthorized data access or actions, violating GDPR's data protection principles and HIPAA's security rules. Non-compliance may result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Upgrade GitLab EE to version 19.2.8, 19.3.5, or 19.4.2 or later to address the vulnerability.

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