High severity7.4NVD Advisory· Published Feb 8, 2021· Updated Jun 17, 2026
CVE-2021-21305
CVE-2021-21305
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, there is a code injection vulnerability. The "#manipulate!" method inappropriately evals the content of mutation option(:read/:write), allowing attackers to craft a string that can be executed as a Ruby code. If an application developer supplies untrusted inputs to the option, it will lead to remote code execution(RCE). This is fixed in versions 1.3.2 and 2.1.1.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
carrierwaveRubyGems | < 1.3.2 | 1.3.2 |
carrierwaveRubyGems | >= 2.0.0, < 2.1.1 | 2.1.1 |
Affected products
2- Range: < 1.3.2
Patches
Vulnerability mechanics
References
8- github.com/carrierwaveuploader/carrierwave/commit/387116f5c72efa42bc3938d946b4c8d2f22181b7nvdPatchThird Party AdvisoryWEB
- github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-cf3w-g86h-35x4nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-cf3w-g86h-35x4ghsaADVISORY
- github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.mdnvdRelease NotesThird Party AdvisoryWEB
- github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.mdnvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-21305ghsaADVISORY
- rubygems.org/gems/carrierwavenvdProductThird Party AdvisoryWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/carrierwave/CVE-2021-21305.ymlghsaWEB
News mentions
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