Cyber Resilience

CVE-2023-4018

Gitlab 16.2 – 16.2.5

Published
01 September 2023
Modified
21 November 2024
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0039 32th percentile
Risk Priority 37 floored blend · peak EPSS

Summary

CVE-2023-4018 is a medium-severity Forced Browsing (CWE-425) vulnerability in Gitlab Gitlab. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An issue has been discovered in GitLab affecting all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. Due to improper permission validation it was possible to create model experiments in public projects.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1083 File and Directory Discovery Discovery
Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-0861Same product: Gitlab Gitlab
CVE-2024-0456Same product: Gitlab Gitlab
CVE-2025-6195Same product: Gitlab Gitlab
CVE-2024-8311Same product: Gitlab Gitlab
CVE-2026-5816Same product: Gitlab Gitlab
CVE-2024-8977Same product: Gitlab Gitlab
CVE-2026-7471Same product: Gitlab Gitlab
CVE-2025-12073Same product: Gitlab Gitlab
CVE-2018-14364Same product: Gitlab Gitlab
CVE-2021-39935Same product: Gitlab Gitlab

Affected Assets

gitlab
gitlab
16.3.0 · 16.2 — 16.2.5 · 16.2 — 16.2.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-425

Forcing a decision on every access request, including direct ones, reduces the exploitability of forced browsing by ensuring no unchecked access paths.

addresses: CWE-425

Forces all accesses through the reference monitor, preventing direct or forced requests that bypass checks.

addresses: CWE-425

Enforcing access for all logical requests prevents unauthorized direct access to protected resources.

addresses: CWE-425

Displaying the notification before further access on public systems prevents direct resource requests from bypassing the required system use terms and consent.

addresses: CWE-425

Decoy endpoints catch forced browsing and direct requests, deflecting attackers from legitimate resources while enabling analysis.

addresses: CWE-425

Blocks unauthorized direct requests or forced browsing by denying input access to non-authorized actors.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 full match
prevents

Directly requires policy-driven definition, enforcement, and review of authorizations on resources such as URLs.

PR.IR-01 mostly match
prevents

Protects environments from unauthorized logical access, which includes preventing direct requests to restricted paths.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing can detect forced-browsing flaws, but the control itself does not prevent them in production.

prevents

Information access restriction implements the technical enforcement that directly blocks unauthorized direct requests.

prevents

Access control policy directly requires authorization checks on all resources, preventing forced browsing.

degrades

Managing access rights ensures every URL/script/file is explicitly authorized, mitigating direct request attacks.

degrades

Privileged access rights control enforces least-privilege checks on restricted endpoints.

prevents

Secure SDLC can include authorization design, yet the control itself does not guarantee runtime enforcement.

References