Security readout for executives and security teams
Plain-English summary
CVE-2020-28268 affects the npm package controlled-merge. Vulnerable versions can allow prototype pollution, which can corrupt application object behavior. Public sources state denial of service is possible and remote code execution may be possible, but they do not provide severity scoring or exploitation evidence.
Executive priority
Treat this as a dependency hygiene issue with potentially serious impact but incomplete public scoring. Prioritize internet-facing or API services first, then broader dependency cleanup.
Technical view
controlled-merge versions 1.0.0, 1.0.1, 1.1.0, and 1.2.0 are affected by prototype pollution. The issue arises in merge behavior and may let polluted object prototypes affect application logic. Sources list denial of service and possible remote code execution; CVSS and CWE data are not provided.
Likely exposure
Exposure is likely limited to applications that include controlled-merge versions 1.0.0 through 1.2.0, directly or transitively. Risk is higher where the package processes attacker-influenced object data.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV. Public descriptions only state potential impact: denial of service and possible remote code execution.
Researcher notes
Evidence is sparse: no CVSS, CWE, KEV listing, or confirmed fixed version is present in the bundle. The GitHub commit likely contains relevant remediation context, but this analysis only uses the supplied metadata.
Mitigation direction
- Inventory direct and transitive controlled-merge dependencies across JavaScript projects.
- Check vendor or package guidance for a fixed version before upgrading.
- Replace or remove controlled-merge where no maintained fix is available.
- Avoid passing attacker-controlled object data into affected merge paths.
- Prioritize services that parse external JSON or request bodies.
Validation and detection
- Review lockfiles for controlled-merge versions 1.0.0, 1.0.1, 1.1.0, or 1.2.0.
- Trace whether affected package usage handles untrusted user input.
- Confirm deployed builds match remediated dependency versions.
- Run existing unit and regression tests after dependency changes.
- Monitor vendor advisories for any clarified fixed version or exploit status.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-28268 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 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://github.com/hlfshell/controlled-merge/commit/5a4b2e9ffe5a0be7f8843d4ab038599d3ae5f9d4CVE reference · x_refsource_MISC
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28268CVE reference · x_refsource_MISC
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.