Prototype pollution in dojo

Description

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

Scores

EPSS (exploitation in 30 days)

4.0% · top 9.4% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Weakness

• CWE-94: Improper Control of Generation of Code ('Code Injection') (opens in a new tab)All about CWE-94 and its CVEs
• CWE-1321 (opens in a new tab)All about CWE-1321 and its CVEs

Affected products

• dojo · dojo

  • affected < 1.12.8
  • affected >= 1.13.0, < 1.13.7
  • affected >= 1.14.0, < 1.14.6
  • affected >= 1.15.0, < 1.15.3
  • affected >= 1.16.0, < 1.16.2

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• npmdojoGHSA-jxfh-8wgv-vfr2 (opens in a new tab)

References (11)

• [debian-lts-announce] 20200311 [SECURITY] [DLA 2139-1] dojo security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://www.oracle.com/security-alerts/cpujul2020.html (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/dojo/dojo/security/advisories/GHSA-jxfh-8wgv-vfr2 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/dojo/dojo/commit/20a00afb68f5587946dc76fbeaa68c39bda2171d (opens in a new tab)x_refsource_MISCx_transferred
• [qpid-users] 20210309 Addressing CVE-2020-5258 in Qpid Broker-J (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [qpid-users] 20210314 Re: Addressing CVE-2020-5258 in Qpid Broker-J (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [qpid-users] 20210318 Re: Addressing CVE-2020-5258 in Qpid Broker-J (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://www.oracle.com//security-alerts/cpujul2021.html (opens in a new tab)x_refsource_MISCx_transferred
• https://www.oracle.com/security-alerts/cpuoct2021.html (opens in a new tab)x_refsource_MISCx_transferred
• https://www.oracle.com/security-alerts/cpujan2022.html (opens in a new tab)x_refsource_MISCx_transferred
• https://www.oracle.com/security-alerts/cpujul2022.html (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-jxfh-8wgv-vfr2 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2020-5258](https://trackcve.app/badge/CVE-2020-5258.svg)](https://trackcve.app/cve/CVE-2020-5258)

Record last updated 8 Oct 2026, 21:14 UTC.