Security readout for executives and security teams
CVE-2016-4340 lets a logged-in GitLab user abuse the impersonation feature to become any other user. In a GitLab environment, that can mean unauthorized access to code, issues, CI/CD data, and administrative functions. The bundle identifies old GitLab 8.2 through 8.7 release lines as affected. Exposure is likely limited to self-managed GitLab instances running the listed 8.2.x, 8.3.x, 8.4.x, 8.5.x, 8.6.x, or 8.7.0 versions. The source bundle does not identify affected hosted GitLab services or other products. Treat as urgent for any remaining affected GitLab deployment. A valid user account could become any other user, potentially exposing repositories, credentials, CI/CD workflows, and administrative control. Mitigation focus: Upgrade affected GitLab instances using GitLab's CVE-2016-4340 patch advisory.; If exact fixed versions are unclear, follow current GitLab vendor guidance.; Restrict access to affected GitLab instances until patched..
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
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ATT&CK lookup starting points
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CVE-2016-4340 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://about.gitlab.com/2016/05/02/cve-2016-4340-patches/CVE reference · x_refsource_CONFIRM
- 40236CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://gitlab.com/gitlab-org/gitlab-ce/issues/15548CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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