CVE-2025-57330 json
web3-core-subscriptions has a Prototype Pollution vulnerability
published 2025-09-24 13 mo ago modified 2026-06-17 4 mo ago also GHSA-hhf6-3xpg-pggx , EUVD-2025-31064
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
The web3-core-subscriptions is a package designed to manages web3 subscriptions. A Prototype Pollution vulnerability in the attachToObject function of web3-core-subscriptions version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 13 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | web3-core-subscriptions | <=2.0.0-alpha.1 |
no fix listed |
Classification
- Weakness
-
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
References
-
github.com
/web3/web3.js/commit/d9660426c12210c5071aeb4e1a647c6ea9d67b12
web
-
github.com
/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/web3-core-subscriptions%401.10.4/index.js
web, broken-link
-
github.com
/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57330
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-57330
advisory
-
github.com
/web3/web3.js
package
Sources
- CVE List CVE-2025-57330
- GitHub Advisory GHSA-hhf6-3xpg-pggx
- NVD CVE-2025-57330
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