Description
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 writers for class accessors, which allows remote attackers to bypass intended validation steps via crafted parameters.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rails | 2:4.2.5.1-1 | — |
| Debian 13 | rails | 2:4.2.5.1-1 | — |
| Debian 12 | rails | 2:4.2.5.1-1 | — |
| Debian 8 | rails | 2:4.1.8-1+deb8u1 | DSA-3464-1 |
| Debian 7 | ruby-activemodel-3.2 | 3.2.6-3+deb7u1 | DLA-498-1 |
| Debian 7 | ruby-activerecord-3.2 | 3.2.6-5+deb7u3 | DLA-642-1 |
| Debian 7 | ruby-activesupport-3.2 | 3.2.6-6+deb7u3 | DLA-641-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 2 | rh-ror41-rubygem-actionpack +2 | 1:4.1.5-3.el6 | RHSA-2016:0296 |
| RHEL 2 | rh-ror41-rubygem-actionview +1 | 4.1.5-4.el6 | RHSA-2016:0296 |
| RHEL 2 | rh-ror41-rubygem-activemodel +1 | 4.1.5-2.el6 | RHSA-2016:0296 |
| RHEL 2 | rh-ror41-rubygem-activerecord +1 | 1:4.1.5-2.el6 | RHSA-2016:0296 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | portus | 2.0.3-2.4 | SUSE-SU-2016:1146-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud 5 | rubygem-activemodel-4_1 +1 | 4.1.9-9.1 | SUSE-SU-2016:0598-1, SUSE-SU-2016:0597-1 |
| SUSE OpenStack Cloud 5 | rubygem-activesupport-4_1 | 4.1.9-12.1 | SUSE-SU-2016:0600-1 |
| SUSE Enterprise Storage 2.1 | rubygem-activemodel-4_2 +1 | 4.2.2-5.1 | SUSE-SU-2016:0458-1, SUSE-SU-2016:0432-1 |
| SUSE Enterprise Storage 2.1 | rubygem-activesupport-4_2 | 4.2.2-6.1 | SUSE-SU-2016:0435-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | activemodel | >= 4.1.0, < 4.1.14.1 | 4.1.14.1 | GHSA-543v-gj2c-r3ch |
| RubyGems | activemodel | >= 4.2.0, < 4.2.5.1 | 4.2.5.1 | GHSA-543v-gj2c-r3ch |
Advisories 13
- RHSA-2016:0296 Red Hat Security Advisory: rh-ror41 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- WID-SEC-2025-1085 Ruby on Rails: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 17, 2026
- DLA-641-1 ruby-activesupport-3.2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-498-1 ruby-activemodel-3.2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-642-1 ruby-activerecord-3.2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3464-1 rails - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:0600-1 Security update for rubygem-activesupport-4_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1146-1 Security update for portus SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0597-1 Security update for rubygem-activemodel-4_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0435-1 Security update for rubygem-activesupport-4_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0598-1 Security update for rubygem-activerecord-4_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0458-1 Security update for rubygem-activerecord-4_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0432-1 Security update for rubygem-activemodel-4_2 SUSE / openSUSE Security Updates · May 2, 2025
References
- [oss-security] 20160125 [CVE-2016-0753] Possible Input Validation Circumvention in Active Model mailing-list
- [ruby-security-ann] 20160125 [CVE-2016-0753] Possible Input Validation Circumvention in Active Model mailing-list
- openSUSE-SU-2016:0372 vendor-advisory
- FEDORA-2016-94e71ee673 vendor-advisory
- FEDORA-2016-73fe05d878 vendor-advisory
- FEDORA-2016-cc465a34df vendor-advisory
- SUSE-SU-2016:1146 vendor-advisory
- 1034816 vdb-entry
- DSA-3464 vendor-advisory
- RHSA-2016:0296 vendor-advisory
- FEDORA-2016-eb4d6e8aab vendor-advisory
- FEDORA-2016-cb30088b06 vendor-advisory
- 82247 vdb-entry