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TI-2026-01538 Aliases CVE-2026-1868GHSA-jfr3-cr47-9vqq

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

Priority MEDIUM 44CWE-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 Duo Workflow Service component of GitLab AI Gateway affecting all versions of the AI Gateway from 18.1.6, 18.2.6, 18.3.1 to 18.6.1, 18.7.0, and 18.8.0 in which AI Gateway was vulnerable to insecure template expansion of user supplied data via crafted Duo Agent Platform Flow definitions. This vulnerability could be used to cause Denial of Service or gain code execution on the Gateway. This has been fixed in versions 18.6.2, 18.7.1, and 18.8.1 of the GitLab AI Gateway.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00696 53rd percentileScored 2026-11-07
Fix Fixed GitLab AI Gateway (GitLab): 18.6.2, 18.7.1, 18.8.1

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 18.6.2; 18.7.0 to before 18.7.1; 18.8.0 to before 18.8.118.6.2, 18.7.1, 18.8.1Patch availableCNA
  • GitLab AI Gateway VendorGitLab Affected 18.1.6 to before 18.6.2; 18.7.0 to before 18.7.1; 18.8.0 to before 18.8.1 Fixed in 18.6.2, 18.7.1, 18.8.1 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 18.6.2, 18.7.1, 18.8.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1868
  2. 2026-10-03 Alias added: GHSA-jfr3-cr47-9vqq
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Other 2

  • 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