Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-bugp-pgyh-cuer
Vulnerability ID VCID-bugp-pgyh-cuer
Aliases CVE-2022-23631
GHSA-5888-ffcr-r425
Summary Prototype Pollution leading to Remote Code Execution in superjson
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00398 https://api.first.org/data/v1/epss?cve=CVE-2022-23631
epss 0.00398 https://api.first.org/data/v1/epss?cve=CVE-2022-23631
epss 0.00398 https://api.first.org/data/v1/epss?cve=CVE-2022-23631
cvssv3.1 9.0 https://github.com/advisories/GHSA-5888-ffcr-r425
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-5888-ffcr-r425
generic_textual CRITICAL https://github.com/advisories/GHSA-5888-ffcr-r425
cvssv3.1 9.0 https://github.com/blitz-js/superjson
generic_textual CRITICAL https://github.com/blitz-js/superjson
cvssv3.1 9.0 https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
cvssv3.1_qr CRITICAL https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
generic_textual CRITICAL https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
cvssv3.1 9.0 https://nvd.nist.gov/vuln/detail/CVE-2022-23631
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2022-23631
cvssv3.1 9.0 https://www.sonarsource.com/blog/blitzjs-prototype-pollution
generic_textual CRITICAL https://www.sonarsource.com/blog/blitzjs-prototype-pollution
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-23631
https://github.com/blitz-js/superjson
https://www.sonarsource.com/blog/blitzjs-prototype-pollution
https://www.sonarsource.com/blog/blitzjs-prototype-pollution/
CVE-2022-23631 https://nvd.nist.gov/vuln/detail/CVE-2022-23631
GHSA-5888-ffcr-r425 https://github.com/advisories/GHSA-5888-ffcr-r425
GHSA-5888-ffcr-r425 https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://github.com/advisories/GHSA-5888-ffcr-r425
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://github.com/blitz-js/superjson
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-23631
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://www.sonarsource.com/blog/blitzjs-prototype-pollution
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.61028
EPSS Score 0.00398
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T20:27:50.761804+00:00 GHSA Importer Import https://github.com/advisories/GHSA-5888-ffcr-r425 38.6.0