Type Vulnerability
We have released versions 19.2.4, 19.3.2, and 19.4.1 of the These versions contain a critical security fix for.
GitLab
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…
CVE-2026-90970
What this means
This is rated critical severity (9.9 out of 10). Current estimates put the chance of attack in the next 30 days at roughly 17%. Ask IT whether any software in your estate includes GitLab AI Gateway, and treat that as the priority.
Full vendor description
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.
Scoring and exploitation
9.9/ 10
CVSS 3.1 base scoreCritical
Exploitable over the network with a low-privilege account, and no one has to click or open anything. High impact on confidentiality, integrity and availability, and it can reach beyond the vulnerable system.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionNoneUI:N
ScopeChangedS:C
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- Elevated attack likelihood (~17.5% in 30 days)Model estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-1336
References
1 link from the CVE record, grouped by site.
gitlab.com1 link