Prototype Pollution in Expand-Hash Project
CVE-2021-25948
Prototype pollution vulnerability in 'expand-hash' versions 0.1.0 through 1.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.
Vulnerability class: Prototype Pollution
EPSS: 0.033 (87.2th 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
- Expand-hash_project Expand-hash
- N/a Expand-hash — versions 0.1.0, 0.1.1, 0.2.1, 0.2.2, 1.0.0, 1.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vulnerabilitylab@mend.io (Exploit, Third Party Advisory, x_refsource_MISC)
- vulnerabilitylab@mend.io (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-25948?
- CVE-2021-25948 is a critical-severity vulnerability in Expand-Hash Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-06-10.
- How severe is CVE-2021-25948?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-25948 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.