# CVE-2023-49090: ruby-carrierwave: CarrierWave is a solution for file uploads for Rails, Sinatra and other Ruby web frameworks

CVE-2023-49090 is fixed in ruby-carrierwave on 1 platform, first by ruby-carrierwave 1.2.2-1ubuntu0.1~esm1, released November 29, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-49090
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 29, 2023

## Description

CarrierWave is a solution for file uploads for Rails, Sinatra and other Ruby web frameworks. CarrierWave has a Content-Type allowlist bypass vulnerability, possibly leading to XSS. The validation in `allowlisted_content_type?` determines Content-Type permissions by performing a partial match. If the `content_type` argument of `allowlisted_content_type?` is passed a value crafted by the attacker, Content-Types not included in the `content_type_allowlist` will be allowed. This issue has been patched in versions 2.2.5 and 3.0.5.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-carrierwave Ubuntu 18.04.6 LTS (bionic) | 1.2.2-1ubuntu0.1~esm1 | [ruby-carrierwave 1.2.2-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ruby-carrierwave-1.2.2-1ubuntu0.1-esm1.md) | Nov 29, 2023 |
| Linux | ruby-carrierwave Ubuntu 20.04 LTS (focal) | 1.3.1-2ubuntu0.1~esm1 | [ruby-carrierwave 1.3.1-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-carrierwave-1.3.1-2ubuntu0.1-esm1.md) | Nov 29, 2023 |
| Linux | ruby-carrierwave Ubuntu 22.04.1 LTS (jammy) | 1.3.2-2ubuntu0.22.04.1~esm1 | [ruby-carrierwave 1.3.2-2ubuntu0.22.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-carrierwave-1.3.2-2ubuntu0.22.04.1-esm1.md) | Nov 29, 2023 |
| Linux | ruby-carrierwave Ubuntu 24.04.5 LTS (noble) | 1.3.2-2ubuntu0.24.04.1~esm1 | [ruby-carrierwave 1.3.2-2ubuntu0.24.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ruby-carrierwave-1.3.2-2ubuntu0.24.04.1-esm1.md) | Nov 29, 2023 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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