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CVE-2026-96893— Improper Neutralization of Input Used for LLM Prompting in GitLab

Quick assessment

Affected
GitLab GitLab
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab 已修复 GitLab 企业版（EE）中的一处安全问题，该问题影响所有 19.1（不含 19.2.8）、19.3（不含 19.3.5）以及 19.4（不含 19.4.2）版本。在特定条件下，经过身份验证的用户可能通过向 AI 代理指令中注入精心构造的内容，导致本应归属其他用户的意外命令被执行。该漏洞的根本原因在于构建 AI 对话上下文时，对特殊元素的无害化处理不当。

CVSS 7.3 · High EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 19.1< 19.2.8 affected
19.3< 19.3.5 affected
19.4< 19.4.2 affected
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I. Basic Information for CVE-2026-96893

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Input Used for LLM Prompting in GitLab
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1427
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 19.1 ~ 19.2.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-96893

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-96893

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Other References for CVE-2026-96893 (1)

Same Patch Batch · GitLab · 2026-10-13 · 24 CVEs total

CVE-2026-97229 10.0 CRITICAL Integer Overflow or Wraparound in GitLab
CVE-2026-92883 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-16301 8.5 HIGH Incorrect Authorization in GitLab
CVE-2026-14814 8.2 HIGH Permissive Regular Expression in GitLab
CVE-2026-81839 7.7 HIGH Incorrect Authorization in GitLab
CVE-2026-101168 6.2 MEDIUM Insertion of Sensitive Information into Log File in GitLab
CVE-2026-7767 5.8 MEDIUM URL Redirection to Untrusted Site ('Open Redirect') in GitLab
CVE-2026-16275 5.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-84284 5.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-85529 5.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-100755 4.6 MEDIUM Acceptance of Extraneous Untrusted Data With Trusted Data in GitLab
CVE-2026-14210 4.3 MEDIUM Insufficient Granularity of Access Control in GitLab
CVE-2026-14552 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-6567 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-104661 4.3 MEDIUM Incorrect Privilege Assignment in GitLab
CVE-2026-105458 4.3 MEDIUM Reliance on Untrusted Inputs in a Security Decision in GitLab
CVE-2026-92528 4.2 MEDIUM Incorrect Authorization in GitLab
CVE-2026-5954 4.2 MEDIUM Incorrect Authorization in GitLab
CVE-2026-78335 4.2 MEDIUM Incorrect Authorization in GitLab
CVE-2026-100104 3.5 LOW Server-Side Request Forgery (SSRF) in GitLab

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-1427

V. Comments for CVE-2026-96893

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