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Mallory
Medium

Improper Access Control in GitLab EE Security Inventory

IdentifiersCVE-2026-6277CWE-285

CVE-2026-6277 is an improper access control vulnerability in GitLab Enterprise Edition (EE) Security Inventory. GitLab states that affected versions include all versions from 13.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2. Under certain conditions, an authenticated user holding Security Manager-role permissions could manage project security configuration even when the relevant feature was disabled. The issue is caused by incorrect authorization enforcement, allowing security-configuration management actions to proceed despite the disabled state of the feature.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated user with Security Manager-role permissions to bypass intended feature-state restrictions and make unauthorized changes to project security configuration. This can undermine administrative controls and policy enforcement around project security settings, potentially altering how security features are configured or governed within affected GitLab EE projects.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting assignment of the Security Manager role to only strictly trusted users and reviewing projects where security-related features are disabled to ensure no unauthorized configuration changes can be made. Monitor audit logs and configuration changes related to project security settings until the upgrade is completed. The definitive mitigation is to upgrade to a fixed version.

Remediation

Patch, then assume compromise.

Upgrade GitLab EE to a fixed release. GitLab indicates the issue is remediated in 18.10.8, 18.11.5, and 19.0.2. Self-managed deployments running affected versions should upgrade to the appropriate patched version or a later release in the same or newer supported train.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GitLabGitlabapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.