Security readout for executives and security teams
Plain-English summary
This GitLab EE issue can let an authenticated user bypass group IP restriction controls and view project environment details. The business impact is limited confidentiality exposure, not system takeover, but it matters where IP restrictions are used to protect sensitive deployment or environment metadata.
Executive priority
Treat as a moderate-priority patching item. It is not described as remote code execution, but it can weaken a security boundary that executives may assume protects sensitive deployment information.
Technical view
CVE-2023-4895 is a missing authorization flaw in GitLab EE. Affected versions include 12.0 through 16.7.6, 16.8 before 16.8.3, and 16.9 before 16.9.1. The reported impact is unauthorized access to environment details despite configured group IP restrictions.
Likely exposure
Exposure is most likely for GitLab EE deployments in the affected ranges that rely on group IP restriction settings and use project environments containing sensitive metadata.
Exploitation context
The CVE has low attack complexity and requires privileges. KEV is false in the provided bundle, so there is no source-backed evidence here of active exploitation. Public references include GitLab and HackerOne reports, but access may require permissions.
Researcher notes
The available bundle does not include full technical details because the GitLab issue and HackerOne report are marked permissions-required. Analysis should stay anchored to the CVE description, affected ranges, CVSS vector, and vendor-linked references.
Mitigation direction
- Upgrade GitLab EE to a version outside the affected ranges.
- Prioritize instances using group IP restrictions for sensitive projects.
- Review vendor guidance for supported fixed releases and upgrade paths.
- Limit environment detail visibility until patched where business impact is high.
Validation and detection
- Inventory GitLab EE versions across all managed instances.
- Check whether group IP restriction settings are enabled for affected groups.
- Identify projects with environments containing sensitive operational details.
- Confirm upgraded instances are no longer in the affected version ranges.
- Review audit logs for unexpected environment-detail access where available.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-862: 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 lookupCVE-2023-4895 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- GitLab Issue #424766CVE reference · issue-tracking, permissions-required
- HackerOne Bug Bounty Report #2134787CVE reference · technical-description, exploit
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.