CVE-2017-0889

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-11-13 · updated 2026-06-17
Weakness: CWE-918

Description

Paperclip ruby gem version 3.1.4 and later suffers from a Server-SIde Request Forgery (SSRF) vulnerability in the Paperclip::UriAdapter class. Attackers may be able to access information about internal network resources.

Affected products

thoughtbot paperclip ruby gem: from 3.1.4 before 5.2.0 — fixed in 5.2.0

How to fix

Upgrade to a fixed version: thoughtbot paperclip ruby gem 5.2.0. Check the vendor advisory for mitigations.

References

https://github.com/thoughtbot/paperclip/pull/2435
https://hackerone.com/reports/209430
https://hackerone.com/reports/713
https://github.com/thoughtbot/paperclip/pull/2435
https://hackerone.com/reports/209430
https://hackerone.com/reports/713

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