rollbar vulnerable to Prototype Pollution in merge()
Impact
Prototype pollution vulnerability in merge(). If application code calls rollbar.configure() with untrusted input, prototype pollution is possible.
Patches
Fixed in 2.26.5 and 3.0.0-beta5.
Workarounds
Ensure that values passed to rollbar.configure() do not contain untrusted input.
References
Fixed in https://github.com/rollbar/rollbar.js/pull/1394 (2.26.x) and https://github.com/rollbar/rollbar.js/pull/1390 (3.x)
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | rollbar | < 2.26.5, >= 3.0.0-alpha1, < 3.0.0-beta5 | 2.26.5, 3.0.0-beta5 |
References
- https://github.com/rollbar/rollbar.js/security/advisories/GHSA-xcg2-9pp4-j82x
- https://nvd.nist.gov/vuln/detail/CVE-2025-62517
- 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
- https://github.com/rollbar/rollbar.js
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
rollbar- Disclosed
- 23.10.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-xcg2-9pp4-j82x - CC BY 4.0
Vulnerability history: rollbar
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 10.2025 10.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 1
- Low 1
Disclosures per year
- 2025: 2
- 2026: 0
-
rollbar vulnerable to Prototype Pollution in merge() this entry
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