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TI-2026-65908 Aliases CVE-2026-90970GHSA-5295-vp56-jghq

Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway

Priority MEDIUM 60CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1336.

Summary

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.1.6 before 19.2.4, 19.3 before 19.3.2, and 19.4 before 19.4.1 that, under certain conditions, could have allowed an authenticated user with Duo Agent Platform access to escape the prompt template sandbox via a specially crafted flow configuration, resulting in arbitrary command execution on the AI Gateway.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.17488 97th percentileScored 2026-11-07
Fix Fixed GitLab AI Gateway (GitLab): 19.2.4, 19.3.2, 19.4.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab AI Gateway18.1.6 to before 19.2.4; 19.3 to before 19.3.2; 19.4 to before 19.4.119.2.4, 19.3.2, 19.4.1Patch availableCNA
  • GitLab AI Gateway VendorGitLab Affected 18.1.6 to before 19.2.4; 19.3 to before 19.3.2; 19.4 to before 19.4.1 Fixed in 19.2.4, 19.3.2, 19.4.1 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*——GitLab
  • cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:* Versions — — ·GitLab

Remediation

  • Fix · CNA GitLab AI Gateway (GitLab) Fixed in 19.2.4, 19.3.2, 19.4.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-90970
  2. 2026-10-03 Alias added: GHSA-5295-vp56-jghq
  3. 2026-10-25 EPSS moved to the 95th–99th percentile

References

Other 1

  • TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9
See all 1524 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences