CVE-2015-7581: rubyonrails rails Resource Management Errors
Vulnerability summary
CVE-2015-7581 is a high (CVSS 7.5) Resource Management Errors vulnerability in rubyonrails rails. EPSS estimates a 6.71% chance of exploitation in the next 30 days, higher than 93.9% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 7% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 16-02-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
actionpack/lib/action_dispatch/routing/route_set.rb in Action Pack in Ruby on Rails 4.x before 4.2.5.1 and 5.x before 5.0.0.beta1.1 allows remote attackers to cause a denial of service (superfluous caching and memory consumption) by leveraging an application's use of a wildcard controller route.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · RubygemsEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
6.71%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.71% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- rails< 2:4.2.5.1-1
RubyGems1 product
- actionpack≥ 4.0.0, < 4.2.5.1
Rubyonrails1 product
- railsEOL4.0.0 | 4.0.0:beta | 4.0.0:rc1 | 4.0.0:rc2 | 4.0.1 | 4.0.1:rc1 | 4.0.1:rc2 | 4.0.1:rc3 | 4.0.1:rc4 | 4.0.2 | 4.0.3 | 4.0.4 | 4.0.5 | 4.0.6 | 4.0.6:rc1 | 4.0.6:rc2 | 4.0.6:rc3 | 4.0.7 | 4.0.8 | 4.0.9 | 4.0.10:rc1 | 4.1.0 | 4.1.0:beta1 | 4.1.1 | 4.1.2 | 4.1.2:rc1 | 4.1.2:rc2 | 4.1.2:rc3 | 4.1.3 | 4.1.4 | 4.1.5 | 4.1.6:rc1 | 4.1.7 | 4.1.8 | 4.2.0:beta1 | 4.2.1 | 4.2.2 | 4.2.3 | 4.2.4 | 4.2.5 | 5.0.0:beta1
Ubuntu1 product
- rails< 2:4.2.6-1
4 vendors · 4 products
References
19 links- groups.google.com/forum/message/raw?msg=ruby-security-ann/dthJ5wL69JE/IdvCimtZEgAJMailing ListX Refsource MLISTWEB
- lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.htmlVendor AdvisoryX Refsource FEDORAWEB
- lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.htmlVendor AdvisoryX Refsource FEDORAWEB
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.htmlVendor AdvisoryX Refsource SUSEWEB