Security readout for executives and security teams
Plain-English summary
CVE-2021-22248 is an information disclosure issue in GitLab CE/EE. In affected versions, people who were not project members could see some pipeline information for public projects even when pipeline access was meant to be members-only. The business impact is exposure of CI/CD metadata, not system takeover.
Executive priority
Treat this as a moderate-priority confidentiality issue. Prioritize remediation where public projects use CI/CD pipelines containing sensitive build names, job metadata, branch context, or release process details. It is less urgent than takeover vulnerabilities but still warrants scheduled patching and exposure review.
Technical view
GitLab CE/EE versions since 13.12 had improper authorization on the pipelines page. Affected ranges are 13.12 before 13.12.9, 14.0 before 14.0.7, and 14.1 before 14.1.2. The CVSS 3.1 score is 5.3: network-accessible, low complexity, no privileges or user interaction, confidentiality impact only.
Likely exposure
Exposure is most likely for public GitLab projects on affected CE/EE versions where pipelines were intentionally restricted to members only. The supplied sources do not describe private projects, self-managed configuration details, or hosted-service exposure beyond the listed GitLab product ranges.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The issue is externally reachable and unauthenticated according to the CVSS vector, but available evidence only supports unauthorized viewing of some pipeline information, not code execution or data modification.
Researcher notes
The available description is narrow: improper authorization on the pipelines page exposing some pipeline information. Sources do not define the exact fields exposed, affected deployment modes beyond GitLab CE/EE, or confirmed exploit activity. Avoid expanding scope beyond public projects and the listed version ranges.
Mitigation direction
- Upgrade GitLab CE/EE beyond the affected version ranges.
- Check current GitLab vendor guidance for any additional remediation notes.
- Review public projects with member-only pipeline visibility settings.
- Assume exposed pipeline metadata may need incident review if affected.
Validation and detection
- Inventory GitLab CE/EE versions across self-managed instances.
- Identify public projects with pipelines restricted to members only.
- Verify installed versions are not in the affected ranges.
- Review access logs for unusual pipeline page access on public projects.
Public sources used
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.
CVE-2021-22248 mapping review
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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
- https://gitlab.com/gitlab-org/gitlab/-/issues/336074CVE reference · x_refsource_MISC
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22248.jsonCVE reference · x_refsource_CONFIRM
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.