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Vulnerability record · CVE-2020-8158 · published 18 September 2020

CVE-2020-8158: Typeorm prototype pollution vulnerability

Typeorm · Typeorm

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.

9.8 CVSS 3.1 Critical EPSS 2.1% · top 18.9% CWE-471 · CWE-471CWE-1321 · Prototype pollution
9.8CVSS 3.1 base score, v2 7.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://hackerone.com/reports/869574 ExploitPatchThird Party Advisory
https://hackerone.com/reports/869574 ExploitPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-33171Typeorm sql injection vulnerabilityThe findOne function in TypeORM before 0.3.0 can either be supplied with a string or a FindOneOptions object. When input to the function is a user-co…EPSS 21%

Source: NIST National Vulnerability Database (record CVE-2020-8158), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.