CVE-2020-7608: yargs yargs-parser
Vulnerability summary
CVE-2020-7608 is a medium (CVSS 5.3) vulnerability in yargs yargs-parser. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.8% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.3, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4Timeline
- 16-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
yargs-parser could be tricked into adding or modifying properties of Object.prototype using a "__proto__" payload.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- OSV · NpmEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.51% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (snyk.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- node-yargs-parser< 18.1.1-1
Mageia1 product
- nodejs-yargs-parser< 10.0.0-3.1.mga7
Npm1 product
- yargs-parser≥ 6.0.0, < 13.1.2 | ≥ 14.0.0, < 15.0.1 | ≥ 16.0.0, < 18.1.1 | < 5.0.1
Ubuntu1 product
- node-yargs-parserAll versions (No fix recorded)
Yargs1 product
- yargs-parser< 5.0.1 | ≥ 6.0.0, < 13.1.2 | ≥ 14.0.0, < 15.0.1 | ≥ 16.0.0, < 18.1.1
5 vendors · 5 products
