SB2026042470 - Multiple vulnerabilities in Rollbar.js

Description

This security bulletin contains information about 2 vulnerabilities.

1) Prototype pollution (CVE-ID: CVE-2025-62517)

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to modify object prototype attributes.

The vulnerability exists due to improperly controlled modification of object prototype attributes in merge() when rollbar.configure() processes untrusted input. A remote attacker can supply crafted input to modify object prototype attributes.

2) Prototype pollution (CVE-ID: CVE-2025-57325)

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://github.com/rollbar/rollbar.js/security/advisories/GHSA-xcg2-9pp4-j82x
• https://github.com/advisories/GHSA-xcg2-9pp4-j82x
• https://github.com/rollbar/rollbar.js/security/advisories/GHSA-r8c2-2qwq-94p6