Answer in brief
CVE-2020-5258 records a High severity (CVSS 7.7) vulnerability in Prototype pollution in dojo. The current sources do not mark it as known exploited. The current feed maps dojo/dojo (generic), dojo (npm), dojo (npm), dojo (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps dojo/dojo (generic), dojo (npm), dojo (npm), dojo (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| dojo/dojogeneric | <1.12.8 || >=1.13.0 <1.13.7 || >=1.14.0 <1.14.6 || >=1.15.0 <1.15.3 || >=1.16.0 <1.16.2 | 1.12.8, 1.13.7, 1.14.6, 1.15.3, 1.16.2 |
| dojonpm | >=0 <1.11.10 | 1.11.10 |
| dojonpm | >=1.12.0 <1.12.8 | 1.12.8 |
| dojonpm | >=1.13.0 <1.13.7 | 1.13.7 |
| dojonpm | >=1.14.0 <1.14.6 | 1.14.6 |
| dojonpm | >=1.15.0 <1.15.3 | 1.15.3 |
| dojonpm | >=1.16.0 <1.16.2 | 1.16.2 |
Published upstream
Mar 10, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
In affected versions of dojo (NPM package), the deepCopy method is vulnerable to Prototype Pollution. Prototype Pollution refers to the ability to inject properties into existing JavaScript language construct prototypes, such as objects. An attacker manipulates these attributes to overwrite, or pollute, a JavaScript application object prototype of the base object by injecting other values. This has been patched in versions 1.12.8, 1.13.7, 1.14.6, 1.15.3 and 1.16.2
Quoted source text, attributed separately from HOL analysis.