9.8

CVE-2021-42139: deno deno_standard_modules Code Injection

CVSS: 9.8v3.1CriticalModified
Published 11-10-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-42139 is a critical (CVSS 9.8) Code Injection vulnerability in deno deno_standard_modules. EPSS estimates a 2.07% chance of exploitation in the next 30 days, higher than 81.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.07%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 11-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.07%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.07% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Deno Std

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Deno1 product

1 vendor · 1 product

References

3 links