CVE-2026-96893 Improper Neutralization of Input Used for LLM Prompting in GitLab
Authenticated users can inject content into AI agent instructions to execute unintended commands attributed to other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-96893?
CVE-2026-96893 is a high-severity code injection vulnerability in Gitlab Gitlab, published on 13 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2026-96893?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 19.1.0 | 19.2.8, 19.3.5, 19.4.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2026-96893?
Upgrade gitlab to a fixed version for your release line: 19.2.8, 19.3.5 or 19.4.2.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-96893 being exploited?
There is no known exploitation of CVE-2026-96893 in the wild and no public exploit code.
Other vulnerabilities in Gitlab Gitlab
- CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound
- CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal
- CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control
- CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution
- CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)
Sources
Also known as BIT-gitlab-2026-96893, GHSA-5vgp-j37h-7wfx, MINI-c88m-cpq9-w6m9, MINI-f3f8-2w5x-fqpc, MINI-xjpf-g8c7-fpp5, UBUNTU-CVE-2026-96893.