CVE-2021-21288

mediumPriorität · verfolgen · 17EPSS 0.012 · 67. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.17% (67th) EPSS

CVSS 4 · medium

Is it mine?

6 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · bewertet 2026-10-27

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

4.3

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 8 · Auswirkung 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-918USCWE-918US

betroffene Produkte (6)

Betroffene Produkte und Versionsbereiche.

carrierwaveuploader carrierwave≤ < 1.3.2enisa_euvdEU
carrierwaveuploader carrierwave2.0.0, → 2.1.1enisa_euvdEU
carrierwave project carrierwave< 1.3.2nvdUScpe:2.3:a:carrierwave_project:carrierwave:*:*:*:*:*:*:*:*
carrierwave project carrierwave2.0.1 → 2.1.1nvdUScpe:2.3:a:carrierwave_project:carrierwave:*:*:*:*:*:*:*:*
RubyGems carrierwave< 1.3.2osvUSpkg:gem/carrierwave
RubyGems carrierwave2.0.0 → 2.1.1osvUSpkg:gem/carrierwave

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-fwcm-636p-68r5Server-side request forgery in CarrierWave2021-02-08ghsa · osvUS
### Impact [CarrierWave download feature](https://github.com/carrierwaveuploader/carrierwave#uploading-files-from-a-remote-location) 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. ### Patches Upgrade to [2.1.1](https://rubygems.org/gems/carrierwave/versions/2.1.1) or [1.3.2](https://rubygems.org/gems/carrierwave/versions/1.3.2). ### Workarounds Using proper network segmentation and applying the principle of least privilege to outbound connections from application servers can reduce the severity of SSRF vulnerabilities. Ideally the vulnerable gem should run on an isolated server without access to any internal network resources or cloud metadata access. ### References [Server-Side Request Forgery Prevention Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Server_Side_Request_Forgery_Prevention_Cheat_Sheet.html) ### For more information If you have any questions or comments about this advisory: * Open an issue in [CarrierWave repo](https://github.com/carrierwaveuploader/carrierwave) * Email me at [mit.shibuya@gmail.com](mailto:mit.shibuya@gmail.com)

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

veröffentlicht 2021-02-08geändert 2026-06-17

Referenzen (16)

Externe Belege — Patches, Meldungen, Analysen.

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