Prototype pollution in Rollbar.js - CVE-2025-57325
Published: April 24, 2026
Vulnerability identifier: #VU127495
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-57325
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Rollbar
Affected software:
Rollbar.js
Rollbar.js
Detailed vulnerability description
The vulnerability allows a remote user to modify object prototype attributes.
The vulnerability exists due to improperly controlled modification of object prototype attributes in rollbar/src/utility set() when application code directly imports the function and passes untrusted input as the second argument. A remote user can supply a crafted property path to modify object prototype attributes.
No impact occurs when using the published public interface.
How to mitigate CVE-2025-57325
Install security update from vendor's website.