High severity8.4NVD Advisory· Published Jul 29, 2026· Updated Aug 3, 2026

CVE-2026-12436

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.

AI Insight

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

Affected products

146

osv-coords141 versions
pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.6 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-18.10 pkg:apk/chainguard/gitlab-runner-helper-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-18.1 pkg:apk/chainguard/gitlab-rails-ce-assets-18.8 pkg:apk/chainguard/gitlab-rails-ce-fips-18.8 pkg:apk/chainguard/gitlab-cng-fips-18.11 pkg:apk/chainguard/gitlab-docker-machine-fips-19.1 pkg:apk/chainguard/gitlab-logger-18.11 pkg:apk/chainguard/gitlab-rails-ce-18.11 pkg:apk/chainguard/gitlab-rails-ce-18.6 pkg:apk/chainguard/gitlab-rails-ce-assets-18.6 pkg:apk/chainguard/gitlab-rails-ce-doc-18.1 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.7 pkg:apk/chainguard/gitlab-rails-ce-fips-18.6 pkg:apk/chainguard/gitlab-rails-ce-fips-18.9 pkg:apk/chainguard/gitlab-runner-helper-compat-19.0 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-19.0 pkg:apk/chainguard/gitlab-workhorse-ce-18.7 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-19.1 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-19.1 pkg:apk/chainguard/gitlab-workhorse-ce-18.9 pkg:apk/wolfi/gitlab-runner-helper-compat-19.1 pkg:bitnami/gitlab pkg:apk/chainguard/gitlab-cfssl-self-sign-scripts-18.11 pkg:apk/chainguard/gitlab-docker-machine-fips-19.0 pkg:apk/chainguard/gitlab-gitaly-scripts-18.11 pkg:apk/chainguard/gitlab-rails-ce-18.9 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.10 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-fips-18.11 pkg:apk/chainguard/gitlab-runner-helper-fips-18.11 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-19.1 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.11 pkg:apk/chainguard/gitlab-container-registry-scripts-18.11 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-fips-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.10 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.6 pkg:apk/wolfi/gitlab-docker-machine-18.11 pkg:apk/wolfi/gitlab-runner-helper-compat-19.0 pkg:apk/chainguard/gitaly-config-18.11 pkg:apk/chainguard/gitlab-base-18.11 pkg:apk/chainguard/gitlab-base-fips-18.11 pkg:apk/chainguard/gitlab-certificates-18.11 pkg:apk/chainguard/gitlab-container-registry-fips-18.11 pkg:apk/chainguard/gitlab-docker-machine-18.11 pkg:apk/chainguard/gitlab-docker-machine-19.0 pkg:apk/chainguard/gitlab-exporter-18.11 pkg:apk/chainguard/gitlab-exporter-scripts-18.11 pkg:apk/chainguard/gitlab-pages-scripts-18.11 pkg:apk/chainguard/gitlab-rails-ce-18.1 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.6 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.8 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.9 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-19.0 pkg:apk/chainguard/gitlab-runner-19.0 pkg:apk/chainguard/gitlab-runner-19.1 pkg:apk/chainguard/gitlab-runner-fips-18.11 pkg:apk/chainguard/gitlab-shell-18.11 pkg:apk/chainguard/gitlab-sidekiq-ce-fips-18.11 pkg:apk/wolfi/gitlab-docker-machine-19.1 pkg:apk/wolfi/gitlab-runner-18.11 pkg:apk/wolfi/gitlab-runner-helper-19.1 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-19.1 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-18.11 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-19.0 pkg:apk/wolfi/gitlab-runner-helper-19.0 pkg:apk/chainguard/gitlab-docker-machine-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-doc-fips-18.1 pkg:apk/chainguard/gitlab-runner-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-18.8 pkg:apk/wolfi/gitlab-runner-19.1 pkg:apk/chainguard/gitlab-runner-helper-compat-19.1 pkg:apk/wolfi/gitlab-runner-helper-compat-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.8 pkg:apk/chainguard/gitlab-workhorse-scripts-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-18.10 pkg:apk/chainguard/gitlab-rails-ce-doc-18.11 pkg:apk/chainguard/gitlab-rails-ce-fips-19.0 pkg:apk/wolfi/gitlab-runner-helper-18.11 pkg:apk/chainguard/gitlab-rails-ce-doc-18.6 pkg:apk/wolfi/gitlab-docker-machine-19.0 pkg:apk/chainguard/gitlab-rails-ce-doc-18.7 pkg:apk/chainguard/gitlab-runner-fips-19.1 pkg:apk/chainguard/gitlab-runner-helper-compat-fips-19.1 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.9 pkg:apk/chainguard/gitlab-workhorse-scripts-18.11 pkg:apk/chainguard/gitlab-cng-18.11 pkg:apk/chainguard/gitlab-container-registry-18.11 pkg:apk/chainguard/gitlab-logger-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-18.10 pkg:apk/chainguard/gitlab-rails-ce-18.7 pkg:apk/chainguard/gitlab-rails-ce-18.8 pkg:apk/chainguard/gitlab-rails-ce-assets-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-18.7 pkg:apk/chainguard/gitlab-rails-ce-assets-18.9 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.1 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.10 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.11 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.7 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-18.9 pkg:apk/chainguard/gitlab-rails-ce-assets-fips-19.0 pkg:apk/chainguard/gitlab-rails-ce-doc-18.10 pkg:apk/chainguard/gitlab-rails-ce-doc-18.8 pkg:apk/chainguard/gitlab-rails-ce-doc-18.9 pkg:apk/chainguard/gitlab-rails-ce-fips-18.1 pkg:apk/chainguard/gitlab-rails-ce-fips-18.10 pkg:apk/chainguard/gitlab-rails-scripts-fips-18.11 pkg:apk/chainguard/gitlab-runner-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-19.0 pkg:apk/chainguard/gitlab-runner-helper-19.1 pkg:apk/chainguard/gitlab-runner-helper-compat-18.11 pkg:apk/chainguard/gitlab-runner-helper-fips-19.0 pkg:apk/chainguard/gitlab-runner-helper-fips-19.1 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/chainguard/gitlab-runner-helper-oci-entrypoint-19.1 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-fips-18.11 pkg:apk/chainguard/gitlab-runner-oci-entrypoint-fips-19.0 pkg:apk/chainguard/gitlab-shell-fips-18.11 pkg:apk/chainguard/gitlab-shell-scripts-18.11 pkg:apk/chainguard/gitlab-sidekiq-ce-18.11 pkg:apk/chainguard/gitlab-toolbox-ce-18.11 pkg:apk/chainguard/gitlab-toolbox-ce-fips-18.11 pkg:apk/chainguard/gitlab-webservice-ce-18.11 pkg:apk/chainguard/gitlab-webservice-ce-fips-18.11 pkg:apk/chainguard/gitlab-workhorse-ce-18.6 pkg:apk/wolfi/gitlab-runner-19.0 pkg:apk/wolfi/gitlab-runner-helper-oci-entrypoint-19.0 pkg:apk/wolfi/gitlab-runner-oci-entrypoint-19.1 pkg:apk/chainguard/gitlab-rails-scripts-18.11 pkg:apk/chainguard/gitlab-docker-machine-19.1 pkg:apk/chainguard/gitlab-rails-ce-fips-18.7 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.7 pkg:apk/chainguard/gitlab-workhorse-ce-fips-18.8
< 18.6.8-r5+ 140 more
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.10.8-r3
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.1.6-r26
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.1.6-r26
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 18.9.8-r5
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: >= 18.0.0, < 19.0.5
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 18.10.8-r7
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.11.8-r1
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.11.8-r0
- (no CPE)range: < 18.10.8-r4
- (no CPE)range: < 18.6.8-r6
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.1.6-r26
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 19.0.5-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 18.1.6-r80
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.8.11-r2
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.10.8-r6
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 19.0.5-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.6.8-r5
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 18.9.8-r5
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.10.8-r6
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 18.1.6-r80
- (no CPE)range: < 18.10.8-r7
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.9.8-r4
- (no CPE)range: < 19.0.5-r0
- (no CPE)range: < 18.10.8-r6
- (no CPE)range: < 18.8.11-r4
- (no CPE)range: < 18.9.8-r7
- (no CPE)range: < 18.1.6-r80
- (no CPE)range: < 18.10.8-r7
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.4-r2
- (no CPE)range: < 18.11.4-r4
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 18.11.7-r5
- (no CPE)range: < 18.6.8-r4
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.0.3-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.11.7-r0
- (no CPE)range: < 19.1.2-r1
- (no CPE)range: < 18.7.7-r4
- (no CPE)range: < 18.7.7-r5
- (no CPE)range: < 18.8.11-r4
GitLab Inc./GitLab4 versions
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*+ 3 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=18.0.0,<19.0.5
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=18.0.0,<19.0.5
- cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:*
GitLab Inc./GitLab EE and CEllm-fuzzy
Range: 18.0 < 19.0.5, 19.1 < 19.1.3, 19.2 < 19.2.1

Patches

Vulnerability mechanics

References

docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/nvdRelease NotesVendor Advisory
hackerone.com/reports/3800511nvdPermissions Required

News mentions

GitLab Fixes 13 Security Flaws That Can Leak Data, Alter Pipelines, and Crash Servers
Cyber Security News · Jul 30, 2026
GitLab Patch Release: 19.2.1, 19.1.3, 19.0.5
GitLab Security Releases · Jul 29, 2026

cvss	0.546
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000