Vulnerability · Published Sep 2, 2021 · Assigned by @huntrdev
CVE-2021-3757Prototype Pollution in immerjs/immer
High 7.5
In plain English
A high-severity prototype pollution in immerjs/immer from immerjs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)7.5High
Exploit odds (30 days)1.7%top 23.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | immer | 9.0.6 | GHSA-c36v-fmgq-m8hx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| immerjs | immerjs/immer | unspecified – through 9.0.5 |
Weakness: CWE-1321 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 x_refsource_MISC
- https://huntr.dev/bounties/23d38099-71cd-42ed-a77a-71e68094adfa x_refsource_CONFIRM