CVE-2026-96893

high

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.

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

https://gitlab.com/gitlab-org/gitlab/-/work_items/607968

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98213

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00545