Security readout for executives and security teams
Plain-English summary
This GitLab EE flaw can expose titles of private issues and merge requests. It does not allow data modification or service disruption, but titles can still reveal customer names, incidents, vulnerabilities, or roadmap details. The affected window is narrow: GitLab EE 16.0 before 16.0.6 and 16.1 before 16.1.1.
Executive priority
Treat as a moderate confidentiality issue. It is unlikely to be a crisis by itself, but private work-item titles can expose sensitive business context. Patch during the next urgent maintenance window, sooner for public GitLab EE instances.
Technical view
CVE-2023-3102 is a CWE-201 sensitive information disclosure in GitLab EE. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, score 5.3. Sources state affected versions are 16.0 before 16.0.6 and 16.1 before 16.1.1, with leakage limited to private issue and MR titles.
Likely exposure
Exposure is most likely on GitLab EE instances running 16.0.x below 16.0.6 or 16.1.0. Internet-facing instances deserve faster attention because the CVSS vector indicates network access, low complexity, no privileges, and no user interaction.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates unauthenticated remote reachability, but the HackerOne reference is only identified by tags in the bundle; prerequisites should be confirmed from vendor sources before assuming exploitability details.
Researcher notes
The source bundle supports affected version bounds, impact type, CVSS, CWE-201, and fixed version thresholds. It does not include detailed exploit mechanics, proof of active exploitation, or a workaround. Avoid broad product assumptions beyond GitLab EE 16.0 and 16.1 affected ranges.
Mitigation direction
- Upgrade GitLab EE 16.0 deployments to 16.0.6 or later.
- Upgrade GitLab EE 16.1 deployments to 16.1.1 or later.
- Check GitLab vendor guidance for any additional supported mitigation.
- Prioritize internet-facing GitLab EE instances first.
- Review whether private issue or MR titles contain sensitive information.
Validation and detection
- Inventory GitLab EE instances and record exact version numbers.
- Flag 16.0.x versions below 16.0.6 and 16.1.0 as affected.
- Confirm upgraded instances report 16.0.6, 16.1.1, or later.
- Review private issue and MR naming practices for sensitive content.
- Track the GitLab issue and CVE record for updated guidance.
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-201: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2023-3102 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- GitLab Issue #414269CVE reference · issue-tracking
- HackerOne Bug Bounty Report #2012073CVE 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.
Insertion of Sensitive Information Into Sent Data
Insertion of Sensitive Information Into Sent Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.