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CVE Record

CVE-2023-5009: Incorrect Authorization in GitLab

An issue has been discovered in GitLab EE affecting all versions starting from 13.12 before 16.2.7, all versions starting from 16.3 before 16.3.4. It was possible for an attacker to run pipeline jobs as an arbitrary user via scheduled security scan policies. This was a bypass of [CVE-2023-3932](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3932) showing additional impact.

CriticalCVSS 9.6Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

GitLab EE could let a logged-in attacker cause scheduled security scan policy pipeline jobs to run as another user. That can expose or alter sensitive project data with the victim user's permissions. The issue is critical, but the provided sources do not show active exploitation.

Executive priority

Prioritize remediation for internet-facing or broadly used GitLab EE instances. This bug can undermine trust in CI/CD authorization and may allow sensitive code or pipeline data access through another user's permissions.

Technical view

CVE-2023-5009 is an incorrect authorization flaw in GitLab EE scheduled security scan policies. A low-privileged attacker could run pipeline jobs as an arbitrary user. Affected versions start at 13.12 before 16.2.7 and 16.3 before 16.3.4. It is described as a bypass of CVE-2023-3932 with additional impact.

Likely exposure

Exposure is likely limited to GitLab EE instances running affected versions with scheduled security scan policies available. The attacker needs an account, but the impact can cross authorization boundaries and affect confidentiality and integrity.

Exploitation context

The source bundle references a GitLab issue and HackerOne report, both marked permissions-required. KEV is false, and no provided source states active exploitation. Public technical details may exist behind access controls, so treat exposure seriously without assuming exploitation in the wild.

Researcher notes

The vulnerability is authorization-related, not unauthenticated remote code execution. CVSS is 9.6 with low privileges required, high complexity, no user interaction, changed scope, and high confidentiality and integrity impact. Public evidence is limited by permission-gated primary references.

Mitigation direction

  • Upgrade GitLab EE to 16.2.7, 16.3.4, or a later unaffected release.
  • Check GitLab vendor guidance for any additional required remediation.
  • Review scheduled security scan policies for unexpected ownership or privilege assumptions.
  • Restrict who can create or modify security scan policies until patched.

Validation and detection

  • Inventory GitLab EE versions across all self-managed instances.
  • Identify instances running 13.12 through before 16.2.7, or 16.3 before 16.3.4.
  • Review scheduled security scan policy pipeline history for unexpected triggering users.
  • Confirm no jobs ran under unintended high-privilege user contexts.
  • Verify patched instances report an unaffected GitLab EE version.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-863: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-5009 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.6 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.6CVSS 3.1CriticalCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N1.85.8Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.6Critical
CVSS 3.1 vector shape for CVE-2023-5009Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GitLabGitLab13.12, 16.3unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-863 · source CWE mapping

Incorrect Authorization

Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.