CVE-2025-62517
Rollbar.js Prototype Pollution Vulnerability in merge()
- State
- Published
- Severity
- 5.9 Medium
- Published
- Oct 23, 2025
- Updated
- Oct 23, 2025
- Reserved
- Oct 15, 2025
Description
Rollbar.js offers error tracking and logging from Javascript to Rollbar. In versions before 2.26.5 and from 3.0.0-alpha1 to before 3.0.0-beta5, there is a prototype pollution vulnerability in merge(). If application code calls rollbar.configure() with untrusted input, prototype pollution is possible. This issue has been fixed in versions 2.26.5 and 3.0.0-beta5. A workaround involves ensuring that values passed to rollbar.configure() do not contain untrusted input.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | GitHub_M |
Weaknesses
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Products
| Product | Versions |
|---|---|
rollbar.jsrollbar |
|
References
- https://github.com/rollbar/rollbar.js/security/advisories/GHSA-xcg2-9pp4-j82x
- https://github.com/rollbar/rollbar.js/pull/1390
- https://github.com/rollbar/rollbar.js/pull/1394
- https://github.com/rollbar/rollbar.js/commit/61032fe6c208b71e249514800808a54bcb8cb8bb
- https://github.com/rollbar/rollbar.js/commit/d717def8b68f4a947975d0aebb729869cdb2d343
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