TI-2020-06266 Aliases CVE-2020-7748 GHSA-77xq-cpvg-7xm2

Prototype pollution in @tsed/core

LOW 39CWE-1321Published 2020-10-20 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
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

This affects the package @tsed/core before 5.65.7. This vulnerability relates to the deepExtend function which is used as part of the utils directory. Depending on if user input is provided, an attacker can overwrite and pollute the object prototype of a program.

Why it matters now

EPSS 0.01721 77th percentileScored 2026-11-07

Fix Fixed @tsed/core: 5.65.7@tsed/core (npm): 5.65.7

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
—	@tsed/core	before 5.65.7	5.65.7	Patch available	CNA
—	@tsed/core (npm)	before 5.65.7	5.65.7	Patch available	GHSA-77xq-cpvg-7xm2

@tsed/core Vendor— Affected before 5.65.7 Fixed in 5.65.7 Patch available CNA
@tsed/core (npm) Vendor— Affected before 5.65.7 Fixed in 5.65.7 Patch available GHSA-77xq-cpvg-7xm2

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ts.ed_project:ts.ed::::::node.js::*	before 5.65.7	Vulnerable	Ts.ed Project

cpe:2.3:a:ts.ed_project:ts.ed:*:*:*:*:*:node.js:*:* Versions before 5.65.7 Vulnerable ·Ts.ed Project

Remediation

Fix · CNA @tsed/core Fixed in 5.65.7
Fix · GHSA-77xq-cpvg-7xm2 @tsed/core (npm) Fixed in 5.65.7 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-7748
2026-10-03 Alias added: GHSA-77xq-cpvg-7xm2

References

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2020-7748

Other 1

https://github.com/tsedio/tsed

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences