CVE-2025-62517
Medium · 5.9CVSS
5.9
EPSS
0.4%
Published
Oct 23, 2025
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | rollbar | 0 | 2.26.5 |
| npm | rollbar | 3.0.0-alpha1 | 3.0.0-beta5 |
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