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CVE-2020-7768

31
FAUCET Score

CVE-2020-7768 is a critical Prototype Pollution vulnerability affecting grpc versions prior to 1.24.4 and @grpc/grpc-js versions prior to 1.1.8, specifically through the loadPackageDefinition function. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, allowing for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.8CPE matchmatch criteria
cpe:2.3:a:grpc:grpc:*:*:*:*:*:node.js:*:*
< 1.24.2CPE matchmatch criteria
cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.55%
Probability of exploitation in next 30 days
EPSS Percentile
88.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0355 is in the 80th percentile among its peer group of 36,829 CVEs.

Social Chatter

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 (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: grpcFixed in: 1.24.4
npmpatch availablevia ghsa
Product: @grpc/grpc-jsFixed in: 1.1.8

Vendor Advisories (2)

npmGHSA-pp75-xfpw-37g9high

Prototype pollution in grpc and @grpc/grpc-js

May 10, 2021
redhatCVE-2020-7768Moderate

nodejs-grpc: Prototype Pollution via loadPackageDefinition

Aug 14, 2020

References

github.com / grpc/grpc-node/pull/1605
PatchThird Party Advisory
github.com / grpc/grpc-node/pull/1606
PatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1038819
MitigationThird Party Advisory
snyk.io / vuln/SNYK-JS-GRPC-598671
MitigationThird Party Advisory
snyk.io / vuln/SNYK-JS-GRPCGRPCJS-1038818
MitigationThird Party Advisory