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CVE-2020-17479

25
FAUCET Score

CVE-2020-17479 is a critical input validation vulnerability (CWE-20) affecting jpv (Json Pattern Validator) versions prior to 2.2.2, where improper validation of corrupted arrays can lead to severe consequences. With a CVSS score of 9.8 (CRITICAL), this vulnerability is remotely exploitable with low attack complexity, allowing for complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.2CPE matchmatch criteria
cpe:2.3:a:json_pattern_validator_project:json_pattern_validator:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 73rd percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: jpvFixed in: 2.2.2

Vendor Advisories (1)

npmGHSA-vh6r-g38f-q3w8critical

Validation bypass in jpv

May 6, 2021

References

blog.sonatype.com / cve-2020-17479
ExploitThird Party Advisory
github.com / manvel-khnkoyan/jpv/commit/e3eec1215caa8d5c560f5e88d0943422831927d6
PatchThird Party Advisory
github.com / manvel-khnkoyan/jpv/issues/10
ExploitThird Party Advisory
npmjs.com / package/jpv
ProductThird Party Advisory