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CRITICAL

CVE-2020-8158

CVSS v3

9.8

CRITICAL

EPSS Score

2.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Prototype pollution vulnerability in the TypeORM package < 0.2.25 may allow attackers to add or modify Object properties leading to further denial of service or SQL injection attacks.

Technical details

Published
2020-09-18

Frequently asked questions

What is CVE-2020-8158?

Prototype pollution vulnerability in the TypeORM package < 0.2.25 may allow attackers to add or modify Object properties leading to further denial of service or SQL injection attacks.

Is CVE-2020-8158 actively exploited?

Active exploitation of CVE-2020-8158 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-8158?

CVE-2020-8158 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-8158 affecting your environment?

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