CVE-2021-25948
9.8
CRITICAL · CVSS 3.1 · EPSS 3.3% (pctl 88)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.3% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-1321 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-06-10 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| expand-hash project | expand-hash |
References
- https://github.com/doowb/expand-hash/blob/556913f6c2f05848110b5b8261cfc78e5ce3dc77/index.js#L19
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25948
- https://github.com/doowb/expand-hash/blob/556913f6c2f05848110b5b8261cfc78e5ce3dc77/index.js#L19
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25948
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