CVE-2015-3225

5.0 MEDIUM 8% exploit odds Fix listed Denial of service Web app

What it is

lib/rack/utils.rb in Rack before 1.5.4 and 1.6.x before 1.6.2, as used with Ruby on Rails 3.x and 4.x and other products, allows remote attackers to cause a denial of service (SystemStackError) via a request with a large parameter depth.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 7.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2015-07-26 22:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:25 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 7.9% in the next 30 days (EPSS).
Severity: 5.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2015-07-26 22:59 UTC
Last modified: 2026-06-17 00:25 UTC
Exploit probability: 7.9% · EPSS, next 30 days
Weakness: CWE-19
Record status: Modified

Affected

Rack Project Rack ≤ 1.5.3
Rack Project Rack 1.6.0
Rack Project Rack 1.6.1
Opensuse 13.1
Opensuse 13.2
Debian Linux 7.0
Debian Linux 8.0

Attack profile CVSS 2.0 · 5.0

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2015-3225.md and follow it. Check whether this project is affected by CVE-2015-3225. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record