CVE-2026-96893

Improper Neutralization of Input Used for LLM Prompting in GitLab

Published Oct 13, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Upgrade to versions 19.2.8, 19.3.5, 19.4.2 or above.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-74
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Improper Neutralization of Input Used for LLM Prompting in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-1427
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitLab
Published
Updated
Oct 14, 2026, 10:51 AM
Reserved
Sep 23, 2026, 7:34 PM
Status
Analyzed
Published
Oct 13, 2026, 2:17 AM
Modified
Oct 14, 2026, 1:55 PM