CVE-2022-23631

9.0 CRITICAL
Published: February 09, 2022 Modified: February 24, 2026
View on NVD

Description

superjson is a program to allow JavaScript expressions to be serialized to a superset of JSON. In versions prior to 1.8.1 superjson allows input to run arbitrary code on any server using superjson input without prior authentication or knowledge. The only requirement is that the server implements at least one endpoint which uses superjson during request processing. This has been patched in superjson 1.8.1. Users are advised to update. There are no known workarounds for this issue.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/advisories/GHSA-5888-ffcr-r425
Source: security-advisories@github.com
Exploit Third Party Advisory
https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
Source: security-advisories@github.com
Exploit Third Party Advisory
https://www.sonarsource.com/blog/blitzjs-prototype-pollution/
Source: security-advisories@github.com
Exploit Third Party Advisory
https://github.com/advisories/GHSA-5888-ffcr-r425
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.sonarsource.com/blog/blitzjs-prototype-pollution/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.0 / 10.0
EPSS (Exploit Probability)
0.4%
60th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

blitzjs