CVE-2021-21288
MEDIUM4.3EPSS 0.20%Server-side request forgery in CarrierWave
Published: 2/8/2021Modified: 4/28/2026
Description
CarrierWave is an open-source RubyGem which provides a simple and flexible way to upload files from Ruby applications. In CarrierWave before versions 1.3.2 and 2.1.1 the download feature has an SSRF vulnerability, allowing attacks to provide DNS entries or IP addresses that are intended for internal use and gather information about the Intranet infrastructure of the platform. This is fixed in versions 1.3.2 and 2.1.1.
Affected packages (2)
- Debian/ruby-carrierwavefrom 0, < 1.3.2-1
- RubyGems/carrierwavefrom 0, < 1.3.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-21288
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-21288
- PATCHhttps://github.com/carrierwaveuploader/carrierwave
- WEBhttps://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08
- WEBhttps://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211---2021-02-08
- WEBhttps://github.com/carrierwaveuploader/carrierwave/commit/012702eb3ba1663452aa025831caa304d1a665c0
- WEBhttps://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-fwcm-636p-68r5
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/carrierwave/CVE-2021-21288.yml
- WEBhttps://rubygems.org/gems/carrierwave