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Critical · 9.8 Public exploit CVE-2020-8158 EUVD-2021-1149GHSA-pf2j-9qmp-jqr2

TypeORM vulnerable to MAID and Prototype Pollution

Published Sep 18, 2020 · Updated Aug 4, 2024 · Assigned by hackerone

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.

Affected products

VendorProductAffectedFixed
— typeorm Fixed Version: 0.2.25 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • open-flaw/CVE-2020-8158 ★ 0 · Dec 8, 2025

    This is a proof-of-concept demonstrating CVE-2020-8158, a critical prototype pollution vulnerability in TypeORM versions < 0.2.25.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm typeorm < 0.2.25 0.2.25 GHSA-pf2j-9qmp-jqr2

References