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 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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 9.73% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- rubyonrails/rails · rubyonrails/ruby on rails
- Source
- secalert@redhat.com
EPSS 9.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00034.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html
- http://rhn.redhat.com/errata/RHSA-2016-0296.html
- http://www.debian.org/security/2016/dsa-3464
- http://www.openwall.com/lists/oss-security/2016/01/25/9
- http://www.securityfocus.com/bid/81800
- http://www.securitytracker.com/id/1034816
- https://groups.google.com/forum/message/raw?msg=ruby-security-ann/9oLY_FCzvoc/5CDXbvpYEgAJ
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00034.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html
- http://rhn.redhat.com/errata/RHSA-2016-0296.html
- http://www.debian.org/security/2016/dsa-3464
- http://www.openwall.com/lists/oss-security/2016/01/25/9
- http://www.securityfocus.com/bid/81800
- http://www.securitytracker.com/id/1034816
- https://groups.google.com/forum/message/raw?msg=ruby-security-ann/9oLY_FCzvoc/5CDXbvpYEgAJ
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.