Critical severity9.8NVD Advisory· Published Jun 10, 2021· Updated Jun 17, 2026
CVE-2021-25948
CVE-2021-25948
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
expand-hashnpm | <= 1.0.1 | — |
Affected products
3- cpe:2.3:a:expand-hash_project:expand-hash:*:*:*:*:*:*:*:*Range: >=0.1.0,<=1.0.1
- expand-hash/expand-hashdescription
Patches
Vulnerability mechanics
References
4- github.com/doowb/expand-hash/blob/556913f6c2f05848110b5b8261cfc78e5ce3dc77/index.jsnvdExploitThird Party AdvisoryWEB
- www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25948nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-x3wr-v4wx-5qpcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-25948ghsaADVISORY
News mentions
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