CVE-2022-25645: Prototype Pollution

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-05-01 · updated 2026-06-17
Weakness: CWE-1321

Description

All versions of package dset are vulnerable to Prototype Pollution via 'dset/merge' mode, as the dset function checks for prototype pollution by validating if the top-level path contains __proto__, constructor or protorype. By crafting a malicious object, it is possible to bypass this check and achieve prototype pollution.

Affected products

dset: all versions

References

https://github.com/lukeed/dset/blob/master/src/merge.js%23L9
https://github.com/lukeed/dset/pull/38
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2431974
https://snyk.io/vuln/SNYK-JS-DSET-2330881
https://github.com/lukeed/dset/blob/master/src/merge.js%23L9
https://github.com/lukeed/dset/pull/38
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2431974
https://snyk.io/vuln/SNYK-JS-DSET-2330881

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