HIGH

CVE-2021-22885

CVSS v3

7.5

HIGH

EPSS Score

4.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

actionpackRubyGemsfrom 2.0.0 · fixed in 5.2.4.6

Vendor advisories

CVE-2021-22885 Red Hat Product Security2 products fixed · 5 known affected
rubygem-actionpack: Possible Information Disclosure / Unintended Method Execution in Action Pack
cfme-gemset as a component of CloudForms Management Engine 5 · cfme-gemset.src as a component of CloudForms Management Engine 5 · system as a component of Red Hat 3scale API Management Platform 2
RHSA-2021:4702 Red Hat Product Security2 products fixed
Red Hat Security Advisory: Satellite 6.10 Release

Full record on NVD

Description

A possible information disclosure / unintended method execution vulnerability in Action Pack >= 2.0.0 when using the `redirect_to` or `polymorphic_url`helper with untrusted user input.

Technical details

Published: 2021-05-27

Frequently asked questions

What is CVE-2021-22885?

A possible information disclosure / unintended method execution vulnerability in Action Pack >= 2.0.0 when using the `redirect_to` or `polymorphic_url`helper with untrusted user input.

Is CVE-2021-22885 actively exploited?

Active exploitation of CVE-2021-22885 has not been confirmed. Its EPSS score was 4.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-22885?

CVE-2021-22885 has a CVSS v3 base score of 7.5 (HIGH severity).

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