CVE-2025-3197
high
CVSS v3
7.3
CVSS v4 NEW
5.5
VIR risk
7.3
Description
expand-object Vulnerable to Prototype Pollution via the expand() Function
Predictions
Exploit likelihood
82%
Patch ETA
โ
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | expand-object | <=0.4.2 | |
References
- https://gist.github.com/miguelafmonteiro/d8f66af61d14e06338b688f90c4dfa7c
- https://github.com/jonschlinkert/expand-object/blob/master/index.js%23L13
- https://security.snyk.io/vuln/SNYK-JS-EXPANDOBJECT-5821390
- https://nvd.nist.gov/vuln/detail/CVE-2025-3197
- https://github.com/jonschlinkert/expand-object
- https://github.com/jonschlinkert/expand-object/blob/master/index.js#L13
CWEs
CWE-1321
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.