CVE-2022-23631
CRITICALblitzjs superjson < 1.8.1 - Unauthenticated Remote Code Execution via Prototype Pollution
Title source: llmDescription
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.
References (3)
Core 3
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
Exploit, Third Party Advisory x_refsource_misc
https://github.com/advisories/GHSA-5888-ffcr-r425
Exploit, Third Party Advisory x_refsource_misc
https://www.sonarsource.com/blog/blitzjs-prototype-pollution/
Scores
CVSS v3
9.0
EPSS
0.0040
EPSS Percentile
60.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-94
CWE-1321
Status
published
Products (4)
blitzjs/blitz
< 0.45.3
blitzjs/superjson
< 1.8.1
npm/blitz
0 - 0.45.3npm
npm/superjson
0 - 1.8.1npm
Published
Feb 09, 2022
Tracked Since
Feb 18, 2026