CVE-2016-0751: actionpack/lib/action_dispatch/http/mime_type.rb in Action Pack in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x…
Noroxi assessment
Priority: Monitor (action score 33/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 9.7% (FIRST EPSS); higher than 95.5% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: rails (Debian:12) 2:4.2.5.1-1; ruby-actionpack-3.2 (Debian:7) 3.2.6-6+deb7u3; rails (Debian:8) 2:4.1.8-1+deb8u1.
Low priority for now. Upgrade to rails (Debian:12) 2:4.2.5.1-1; ruby-actionpack-3.2 (Debian:7) 3.2.6-6+deb7u3; rails (Debian:8) 2:4.1.8-1+deb8u1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
actionpack/lib/action_dispatch/http/mime_type.rb in Action Pack in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not properly restrict use of the MIME type cache, which allows remote attackers to cause a denial of service (memory consumption) via a crafted HTTP Accept header.
- Published
- Feb 15, 2016
- Updated
- Jun 16, 2026
- EPSS
- 9.7% · 95th percentile
- CWE
- CWE-399
Report tools
Action score
33
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 3 / 30 · 9.7%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| rubyonrails | rails | cpe:2.3:a:rubyonrails:rails |
| rubyonrails | ruby on rails | cpe:2.3:a:rubyonrails:ruby_on_rails |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- rubyonrails rails4.0.0
- rubyonrails rails4.0.1
- rubyonrails rails4.0.10
- rubyonrails rails4.0.2
- rubyonrails rails4.0.3
- rubyonrails rails4.0.4
- rubyonrails rails4.0.5
- rubyonrails rails4.0.6
+12 more rows
- rubyonrails rails4.0.7
- rubyonrails rails4.0.8
- rubyonrails rails4.0.9
- rubyonrails rails4.1.0
- rubyonrails rails4.1.1
- rubyonrails rails4.1.10
- rubyonrails rails4.1.12
- rubyonrails rails4.1.13
- rubyonrails rails4.1.2
- rubyonrails rails4.1.3
- rubyonrails rails4.1.4
- rubyonrails rails4.1.5
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | rails | before 2:4.2.5.1-1 | 2:4.2.5.1-1 |
| Debian:7 | ruby-actionpack-3.2 | before 3.2.6-6+deb7u3 | 3.2.6-6+deb7u3 |
| Debian:8 | rails | before 2:4.1.8-1+deb8u1 | 2:4.1.8-1+deb8u1 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-actionpack | before 1:4.1.5-3.el6 | 1:4.1.5-3.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-actionpack-doc | before 1:4.1.5-3.el6 | 1:4.1.5-3.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-actionview | before 0:4.1.5-4.el6 | 0:4.1.5-4.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-actionview-doc | before 0:4.1.5-4.el6 | 0:4.1.5-4.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-activemodel | before 0:4.1.5-2.el6 | 0:4.1.5-2.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-activemodel-doc | before 0:4.1.5-2.el6 | 0:4.1.5-2.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-activerecord | before 1:4.1.5-2.el6 | 1:4.1.5-2.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-activerecord-doc | before 1:4.1.5-2.el6 | 1:4.1.5-2.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-ror41-rubygem-activesupport | before 1:4.1.5-3.el6 | 1:4.1.5-3.el6 |
| Red Hat:rhel_software_collections:2::el6 | ror40-rubygem-actionpack | before 1:4.0.2-7.el6 | 1:4.0.2-7.el6 |
| Red Hat:rhel_software_collections:2::el6 | ror40-rubygem-actionpack-doc | before 1:4.0.2-7.el6 | 1:4.0.2-7.el6 |
| Red Hat:rhel_software_collections:2::el6 | ror40-rubygem-activerecord | before 1:4.0.2-6.el6 | 1:4.0.2-6.el6 |
| Red Hat:rhel_software_collections:2::el6 | ror40-rubygem-activerecord-doc | before 1:4.0.2-6.el6 | 1:4.0.2-6.el6 |
| Red Hat:rhel_software_collections:2::el6 | ror40-rubygem-activesupport | before 1:4.0.2-4.el6 | 1:4.0.2-4.el6 |
| Red Hat:rhel_software_collections:2::el6 | ruby193-rubygem-actionpack | before 1:3.2.8-16.el6 | 1:3.2.8-16.el6 |
| Red Hat:rhel_software_collections:2::el6 | ruby193-rubygem-actionpack-doc | before 1:3.2.8-16.el6 | 1:3.2.8-16.el6 |
| Red Hat:rhel_software_collections:2::el6 | ruby193-rubygem-activerecord | before 1:3.2.8-11.el6 | 1:3.2.8-11.el6 |
| Red Hat:rhel_software_collections:2::el6 | ruby193-rubygem-activerecord-doc | before 1:3.2.8-11.el6 | 1:3.2.8-11.el6 |
| Red Hat:rhel_software_collections:2::el6 | ruby193-rubygem-activesupport | before 1:3.2.8-6.el6 | 1:3.2.8-6.el6 |
| Red Hat:rhel_software_collections:2::el7 | rh-ror41-rubygem-actionpack | before 1:4.1.5-3.el7 | 1:4.1.5-3.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-ror41-rubygem-actionpack-doc | before 1:4.1.5-3.el7 | 1:4.1.5-3.el7 |
+29
Same product
rubyonrails: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-5418There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted…KEV90Now
- CVE-2016-0752Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1…KEV89Now
- CVE-2019-5420A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically…66This week
Published before and after this one in the same product
- ← EarlierCVE-2015-7577Feb 15, 2016 · activerecord/lib/active_record/nested_attributes.rb in Active Record in Ruby on Rails 3.1.x and 3.2.x before 3.2.22.1, 4.0.x and 4.1.x…22Monitor
- ← EarlierCVE-2015-7581Feb 15, 2016 · 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…32Monitor
- Later →CVE-2016-0753Feb 15, 2016 · Active Model in Ruby on Rails 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 supports the use of instance-level…23Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:rails | 2:4.2.5.1-1 · Debian:12 | Package registry (OSV) |
| debian:ruby-actionpack-3.2 | 3.2.6-6+deb7u3 · Debian:7 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-actionpack | 1:4.1.5-3.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-actionpack-doc | 1:4.1.5-3.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-actionview | 0:4.1.5-4.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-actionview-doc | 0:4.1.5-4.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-activemodel | 0:4.1.5-2.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-activemodel-doc | 0:4.1.5-2.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-activerecord | 1:4.1.5-2.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-activerecord-doc | 1:4.1.5-2.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:rh-ror41-rubygem-activesupport | 1:4.1.5-3.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:ror40-rubygem-actionpack | 1:4.0.2-7.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:ror40-rubygem-actionpack-doc | 1:4.0.2-7.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| red hat:ror40-rubygem-activerecord | 1:4.0.2-6.el6 · Red Hat:rhel_software_collections:2::el6 | Package registry (OSV) |
| RubyGems:actionpack | 3.2.22.1 | Package registry (OSV) |
| RubyGems:actionpack | 4.1.14.1 | Package registry (OSV) |
| RubyGems:actionpack | 4.2.5.1 | Package registry (OSV) |
| suse:libjansson | 2.2.1-0.9.11.6 · SUSE:Studio Onsite 1.3 | Package registry (OSV) |
| suse:portus | 2.0.3-2.4 · SUSE:Linux Enterprise Module for Containers 12 | Package registry (OSV) |
| suse:qemu-ext2 | 0.1.1-0.9.4.19 · SUSE:Studio Onsite 1.3 | Package registry (OSV) |
| suse:rubygem-actionpack-3_2 | 3.2.12-0.23.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | Package registry (OSV) |
| suse:rubygem-actionpack-4_1 | 4.1.9-9.1 · SUSE:OpenStack Cloud 5 | Package registry (OSV) |
| suse:rubygem-actionpack-4_2 | 4.2.2-6.1 · SUSE:Enterprise Storage 2.1 | Package registry (OSV) |
| suse:rubygem-bundler19 | 1.7.0-0.13.10 · SUSE:Studio Onsite 1.3 | Package registry (OSV) |
| suse:studio-help | 1.3.20-0.6.9 · SUSE:Studio Onsite 1.3 | Package registry (OSV) |
| suse:susestudio | 1.3.14-52.1 · SUSE:Studio Onsite 1.3 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-399 · Resource Management ErrorsCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log (1)
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (10 more)Show less
- lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html
- lists.opensuse.org/opensuse-updates/2016-02/msg00034.html
- lists.opensuse.org/opensuse-updates/2016-02/msg00043.html
- rhn.redhat.com/errata/RHSA-2016-0296.html
- www.debian.org/security/2016/dsa-3464
- www.openwall.com/lists/oss-security/2016/01/25/9
- www.securityfocus.com/bid/81800
- www.securitytracker.com/id/1034816
- groups.google.com/forum/message/raw?msg=ruby-security-ann/9oLY_FCzvoc/5CDXbvpYEgAJ
Vendor advisories and official records. Exploit/PoC links are deliberately left out.