Prototype pollution in grpc
Priority MEDIUM 49CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
The package grpc before 1.24.4; the package @grpc/grpc-js before 1.1.8 are vulnerable to Prototype Pollution via loadPackageDefinition.
Why it matters now
EPSS 0.04026 90th percentileScored 2026-11-07
Fix Fixed grpc: 1.24.4@grpc/grpc-js: 1.1.8+2 more products
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | grpc | before 1.24.4 | 1.24.4 | Patch available | CNA |
| — | @grpc/grpc-js | before 1.1.8 | 1.1.8 | Patch available | CNA |
| — | grpc (npm) | before 1.24.4 | 1.24.4 | Patch available | GHSA-pp75-xfpw-37g9 |
| — | @grpc/grpc-js (npm) | before 1.1.8 | 1.1.8 | Patch available | GHSA-pp75-xfpw-37g9 |
- grpc Vendor— Affected before 1.24.4 Fixed in 1.24.4 Patch available CNA
- @grpc/grpc-js Vendor— Affected before 1.1.8 Fixed in 1.1.8 Patch available CNA
- grpc (npm) Vendor— Affected before 1.24.4 Fixed in 1.24.4 Patch available GHSA-pp75-xfpw-37g9
- @grpc/grpc-js (npm) Vendor— Affected before 1.1.8 Fixed in 1.1.8 Patch available GHSA-pp75-xfpw-37g9
Remediation
- Fix · CNA grpc Fixed in 1.24.4
- Fix · CNA @grpc/grpc-js Fixed in 1.1.8
- Fix · GHSA-pp75-xfpw-37g9 grpc (npm) Fixed in 1.24.4 Advisory →
- Fix · GHSA-pp75-xfpw-37g9 @grpc/grpc-js (npm) Fixed in 1.1.8 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7768
- 2026-10-03 Alias added: GHSA-pp75-xfpw-37g9
References
More Grpc vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-25614 gRPC-Go has an authorization bypass via missing leading slash in :path CVSS 3.1CRITICAL 9.1
- TI-2017-05916 Google gRPC before 2017-03-29 has an out-of-bounds write caused by a heap-based… CVSS 3.0CRITICAL 9.8
- TI-2017-05476 Google gRPC before 2017-02-22 has an out-of-bounds write caused by a heap-based buffer… CVSS 3.0CRITICAL 9.8
- TI-2017-06843 Google gRPC before 2017-04-05 has an out-of-bounds write caused by a heap-based buffer… CVSS 3.0CRITICAL 9.8
- TI-2017-05477 Google gRPC before 2017-02-22 has an out-of-bounds write related to the gpr_free function in core/lib/support/alloc.c. CVSS 3.0CRITICAL 9.8
Sources
- CVE-2020-7768 · CVE Program
- CVE-2020-7768 · NVD
- FIRST EPSS
- GHSA-pp75-xfpw-37g9 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-7768 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences