Prototype Pollution in Immerjs Immerjs/immer
CVE-2021-3757
immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Vulnerability class: Prototype Pollution
EPSS: 0.017 (74.1th percentile) — read the EPSS interpretation.
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.
Affected products
- Immerjs Immerjs/immer — versions unspecified
- Immer_project Immer
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@huntr.dev (Patch, Third Party Advisory, x_refsource_MISC)
- security@huntr.dev (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2021-3757?
- CVE-2021-3757 is a critical-severity vulnerability in Immerjs Immerjs/immer, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-09-02.
- How severe is CVE-2021-3757?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-3757 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.