How severe is CVE-2023-22797?

CVE-2023-22797 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2023-22797?

CVE-2023-22797 affects the following packages: actionpack (RubyGems). Ecosystems affected: RubyGems.

How do I fix CVE-2023-22797?

Update actionpack to 7.0.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-22797 is resolved across your whole dependency graph.

How do I detect CVE-2023-22797 in my RubyGems dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for actionpack, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-22797 if there is no patch (or I can't update yet)?

Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Is CVE-2023-22797 actively exploited in the wild?

No public exploit code has been indexed for CVE-2023-22797 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2023-22797?

CVE-2023-22797 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 49th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2023-22797?

CVE-2023-22797 is classified as Open Redirect (CWE-601). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2023-22797 published, and has it been updated?

CVE-2023-22797 was published on February 9, 2023 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

💎

💎 RubyGems

Not in CISA KEV

MEDIUM severity

CVE-2023-22797 — actionpack

MEDIUM

CVE-2023-22797 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in actionpack. A fix is available for actionpack — see the affected versions and patch details below.

Open Redirect Vulnerability in Action Pack

Also known asGHSA-9445-4cr6-336r

Published

Feb 9, 2023

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-22797.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs49th percentile — riskier than 49% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

💎actionpack

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

There is a vulnerability in Action Controller’s redirect_to. This vulnerability has been assigned the CVE identifier CVE-2023-22797.

Versions Affected: >= 7.0.0 Not affected: < 7.0.0 Fixed Versions: 7.0.4.1 Impact

There is a possible open redirect when using the redirect_to helper with untrusted user input.

Vulnerable code will look like this:

redirect_to(params[:some_param])

Rails 7.0 introduced protection against open redirects from calling redirect_to with untrusted user input. In prior versions the developer was fully responsible for only providing trusted input. However the check introduced could be bypassed by a carefully crafted URL.

All users running an affected release should either upgrade or use one of the workarounds immediately. Releases

The FIXED releases are available at the normal locations. Workarounds

There are no feasible workarounds for this issue. Patches

To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.

7-0-Fix-sec-issue-with-_url_host_allowed.patch - Patch for 7.0 series

Please note that only the 7.0.Z and 6.1.Z series are supported at present, and 6.0.Z for severe vulnerabilities. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
💎RubyGems	`actionpack`	≥ 7.0.0&&< 7.0.4.1	7.0.4.1`bundle update actionpack --conservative`

Affected Products

2 products · 2 configurations

Application

actionpackactionpack_project

≥ 7.0.0 && < 7.0.4.1

range

Application

railsrubyonrails

≥ 7.0.0 && < 7.0.4.1

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for actionpack, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update actionpack to 7.0.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-22797 is resolved across your whole dependency graph.
Workarounds
Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Frequently Asked Questions

There is a vulnerability in Action Controller’s redirect_to. This vulnerability has been assigned the CVE identifier CVE-2023-22797. Versions Affected: >= 7.0.0 Not affected: < 7.0.0 Fixed Versions: 7.0.4.1 Impact There is a possible open redirect when using the redirect_to helper with untrusted user input. Vulnerable code will look like this: ``` redirect_to(params[:some_param]) ``` Rails 7.0 introduced protection against open redirects from calling redirect_to with untrusted user input. In prior versions the developer was fully responsible for only providing trusted input. However the c