CVE-2026-12436: 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 a

highCVSS 8.4CVE-2026-12436

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.4
Published: 2026-07-29
Last updated: 2026-07-31
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-12436

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-124360.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-12436	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] GitLab: Multiple vulnerabilitiescert-bund
unknownNCSC-2026-0270 [1.00] [M/M] Vulnerabilities fixed in GitLab by GitLab Inc.ncsc-nl
unknownGitLab Multiple Vulnerabilitieshkcert
unknownMultiple Vulnerabilities in GitLab (July 30, 2026)cert-fr-avis
criticalGitLab Patch Release: 19.2.1, 19.1.3, 19.0.5gitlab
criticalGitLab Patch Release: 19.2.1, 19.1.3, 19.0.5gitlab

Recent advisories for GitLab has remediated

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-6336: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.6 before 19.0.5, …nvd · 2026-07-29
highCVE-2026-6267: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1.0 before 19.0.5…nvd · 2026-07-29
mediumCVE-2026-4672: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 19.0.5, …nvd · 2026-07-29
mediumCVE-2026-3093: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.0 before 19.0.5, …nvd · 2026-07-29
mediumCVE-2026-16553: GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 19.0.5, 19…nvd · 2026-07-29
highCVE-2026-15975: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.8 before 19.0.5,…nvd · 2026-07-29