Medium severity6.5NVD Advisory· Published May 27, 2026· Updated May 27, 2026

CVE-2026-1402

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.1 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed an authenticated user to cause denial of service due to insufficient validation.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

GitLab Inc./GitLabreferences
GitLab Inc./CE/EEllm-fuzzy
Range: >=17.1, <18.10.7 || >=18.11, <18.11.4 || >=19.0, <19.0.1
osv-coords69 versions
pkg:apk/chainguard/gitaly-config-19.0 pkg:apk/chainguard/gitlab-base-19.0 pkg:apk/chainguard/gitlab-base-fips-19.0 pkg:apk/chainguard/gitlab-certificates-19.0 pkg:apk/chainguard/gitlab-cfssl-self-sign-scripts-19.0 pkg:apk/chainguard/gitlab-cng-19.0 pkg:apk/chainguard/gitlab-cng-fips-19.0 pkg:apk/chainguard/gitlab-container-registry-19.0 pkg:apk/chainguard/gitlab-container-registry-fips-19.0 pkg:apk/chainguard/gitlab-container-registry-scripts-19.0 pkg:apk/chainguard/gitlab-docker-machine-18.11 pkg:apk/chainguard/gitlab-docker-machine-19.0 pkg:apk/chainguard/gitlab-docker-machine-fips-18.11 pkg:apk/chainguard/gitlab-docker-machine-fips-19.0 pkg:apk/chainguard/gitlab-exporter-19.0 pkg:apk/chainguard/gitlab-exporter-scripts-19.0 pkg:apk/chainguard/gitlab-gitaly-scripts-19.0 pkg:apk/chainguard/gitlab-logger-19.0 pkg:apk/chainguard/gitlab-logger-fips-19.0 pkg:apk/chainguard/gitlab-pages-scripts-19.0 pkg:apk/chainguard/gitlab-rails-ce-assets-19.0 pkg:apk/chainguard/gitlab-rails-ce-doc-19.0 pkg:apk/chainguard/gitlab-rails-ce-fips-19.0 pkg:apk/chainguard/gitlab-rails-scripts-19.0 pkg:apk/chainguard/gitlab-rails-scripts-fips-19.0 pkg:apk/chainguard/gitlab-runner-18.11 pkg:apk/chainguard/gitlab-runner-19.0 pkg:apk/chainguard/gitlab-runner-fips-18.11 pkg:apk/chainguard/gitlab-runner-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-18.11 pkg:apk/chainguard/gitlab-runner-helper-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-18.11 pkg:apk/chainguard/gitlab-runner-helper-compat-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-18.11 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-19.0 pkg:apk/chainguard/gitlab-shell-19.0 pkg:apk/chainguard/gitlab-shell-fips-19.0 pkg:apk/chainguard/gitlab-shell-scripts-19.0 pkg:apk/chainguard/gitlab-sidekiq-ce-19.0 pkg:apk/chainguard/gitlab-sidekiq-ce-fips-19.0 pkg:apk/chainguard/gitlab-toolbox-ce-19.0 pkg:apk/chainguard/gitlab-toolbox-ce-fips-19.0 pkg:apk/chainguard/gitlab-webservice-ce-19.0 pkg:apk/chainguard/gitlab-webservice-ce-fips-19.0 pkg:apk/chainguard/gitlab-workhorse-scripts-19.0 pkg:apk/chainguard/gitlab-workhorse-scripts-fips-19.0 pkg:apk/wolfi/gitlab-docker-machine-18.11 pkg:apk/wolfi/gitlab-docker-machine-19.0 pkg:apk/wolfi/gitlab-runner-18.11 pkg:apk/wolfi/gitlab-runner-19.0 pkg:apk/wolfi/gitlab-runner-helper-18.11 pkg:apk/wolfi/gitlab-runner-helper-19.0 pkg:apk/wolfi/gitlab-runner-helper-compat-18.11 pkg:apk/wolfi/gitlab-runner-helper-compat-19.0 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-18.11 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-19.0 pkg:bitnami/gitlab
< 19.0.2-r0+ 68 more
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 19.0.2-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: < 18.11.4-r0
- (no CPE)range: < 19.0.1-r0
- (no CPE)range: >= 17.1.0, < 18.10.7

Patches

Vulnerability mechanics

References

about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/nvdRelease Notes
hackerone.com/reports/3517283nvdPermissions Required

News mentions

⚡ Weekly Recap: New Linux Flaw, PAN-OS Exploit, AI-Powered Attacks, OAuth Phishing and More
The Hacker News · Jun 1, 2026
GitLab Patches 7 CVEs: Duo AI Identity Flaw, Auth Bypass, and Project Enumeration
Vypr Intelligence · May 28, 2026
GitLab Patch Release: 19.0.1, 18.11.4, 18.10.7
GitLab Security Releases · May 27, 2026

cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000