VulnerabilityModified
CVE-2021-23397
All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function.
CRITICAL 9.8EPSS 0.82%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function. Maintainer suggests using @generates/merger instead.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.82% probability · 57th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1321
- Affected
- merge project/merge
- Source
- report@snyk.io
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://security.snyk.io/vuln/SNYK-JS-IANWALTERMERGE-1311022Exploit, Third Party Advisory
- https://security.snyk.io/vuln/SNYK-JS-IANWALTERMERGE-1311022Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.