Prototype Pollution in Typeorm

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-8158: held from 0.021 to 0.021.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

  • Typeorm
  • Typeorm — versions Fixed Version: 0.2.25

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-8158?
CVE-2020-8158 is a critical-severity vulnerability in Typeorm, classified under Modification of Assumed-Immutable Data (MAID). CVSS score: 9.8/10. Published 2020-09-18.
How severe is CVE-2020-8158?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-8158 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.