CVE-2025-57325
rollbar vulnerable to prototype pollution
Description
### Impact Prototype pollution potential with the utility function `rollbar/src/utility`.`set()`. No impact when using the published public interface. If application code directly imports `set` from `rollbar/src/utility` and then calls `set` with untrusted input in the second argument, it is vulnerable to prototype pollution. POC: ```js const obj = {}; require("rollbar/src/utility").set(obj, "__proto__.polluted", "vulnerable"); console.log({}.polluted !== undefined ? '[POLLUTION_TRIGGERED]':''); ``` ### Patches Fixed in version 2.26.5 and 3.0.0-beta5. ### Workarounds If application code directly imports `set` from `rollbar/src/utility`, ensure that the second argument does not receive untrusted input. ### References https://github.com/rollbar/rollbar.js/issues/1333#issuecomment-3353720946
How to fix CVE-2025-57325
To remediate CVE-2025-57325, upgrade the affected package to a fixed version below.
- —upgrade to 2.26.5 or later
Is CVE-2025-57325 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.26.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |