CVE-2026-33195
Rails: Active Storage: Active Storage (Rails): Arbitrary file access via path traversal in blob keys
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según GHSA (alta), Red Hat (alta).
Descripción
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#path_for` does not validate that the resolved filesystem path remains within the storage root directory. If a blob key containing path traversal sequences (e.g. `../`) is used, it could allow reading, writing, or deleting arbitrary files on the server. Blob keys are expected to be trusted strings, but some applications could be passing user input as keys and would be affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| chainguard | gitlab-rails-ce-18.10, gitlab-rails-ce-18.8, gitlab-rails-ce-18.9 y 4 más | 18.10.3-r1 y 5 más |
| debian 11 | rails | sin corrección indicada |
| debian 12 | rails | 2:6.1.7.10+dfsg-1~deb12u3 |
| debian 13 | rails | 2:7.2.2.2+dfsg-2~deb13u2 |
| debian 14 | rails | 2:7.2.3.1+dfsg-1 |
| echo | rails | 2:6.1.7.10+dfsg-1~deb12u3 |
| rapidfort debian 12 | rails | 2:6.1.7.10+dfsg-1~deb12u3, 2:7.2.2.2+dfsg-2~deb13u2, 2:7.2.3.1+dfsg-1 |
| rapidfort debian 13 | rails | 2:6.1.7.10+dfsg-1~deb12u3, 2:7.2.2.2+dfsg-2~deb13u2, 2:7.2.3.1+dfsg-1 |
| rubygems::GitHub Security Advisory RubyGems | activestorage | 8.1.2.1, 8.0.4.1, 7.2.3.1 |
| rubygems::Ruby Advisory Database | activestorage | ~> 7.2.3, >= 7.2.3.1, ~> 8.0.4, >= 8.0.4.1, >= 8.1.2.1 |
| wolfi | ruby3.2-rails-8.1 | 8.1.3-r0 |
Mostrar las 17 entradas de 11 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| chainguard | gitlab-rails-ce-18.10 | 18.10.3-r1 |
| chainguard | gitlab-rails-ce-18.8 | 18.8.11-r4 |
| chainguard | gitlab-rails-ce-18.9 | 18.9.5-r0 |
| chainguard | gitlab-rails-ce-fips-18.10 | 18.10.3-r0 |
| chainguard | gitlab-rails-ce-fips-18.9 | 18.9.5-r0 |
| chainguard | ruby3.2-rails-8.1 | 8.1.3-r0 |
| chainguard | ruby3.4-rails-8.0 | 8.0.5-r0 |
| debian 11 | rails | sin corrección indicada |
| debian 12 | rails | 2:6.1.7.10+dfsg-1~deb12u3 |
| debian 13 | rails | 2:7.2.2.2+dfsg-2~deb13u2 |
| debian 14 | rails | 2:7.2.3.1+dfsg-1 |
| echo | rails | 2:6.1.7.10+dfsg-1~deb12u3 |
| rapidfort debian 12 | rails | 2:6.1.7.10+dfsg-1~deb12u3, 2:7.2.2.2+dfsg-2~deb13u2, 2:7.2.3.1+dfsg-1 |
| rapidfort debian 13 | rails | 2:6.1.7.10+dfsg-1~deb12u3, 2:7.2.2.2+dfsg-2~deb13u2, 2:7.2.3.1+dfsg-1 |
| rubygems::GitHub Security Advisory RubyGems | activestorage | 8.1.2.1, 8.0.4.1, 7.2.3.1 |
| rubygems::Ruby Advisory Database | activestorage | ~> 7.2.3, >= 7.2.3.1, ~> 8.0.4, >= 8.0.4.1, >= 8.1.2.1 |
| wolfi | ruby3.2-rails-8.1 | 8.1.3-r0 |
Referencias
- https://access.redhat.com/security/cve/CVE-2026-33195
- https://bugzilla.redhat.com/show_bug.cgi?id=2450546
- https://github.com/advisories/GHSA-9xrj-h377-fr87
- https://github.com/rails/rails
- https://github.com/rails/rails/commit/4933c1e3b8c1bb04925d60347be9f69270392f2c
- https://github.com/rails/rails/commit/9b06fbc0f504b8afe333f33d19548f3b85fbe655
- https://github.com/rails/rails/commit/a290c8a1ec189d793aa6d7f2570b6a763f675348
- https://github.com/rails/rails/releases/tag/v7.2.3.1
Las 15 referencias
- https://github.com/rails/rails/releases/tag/v8.0.4.1
- https://github.com/rails/rails/releases/tag/v8.1.2.1
- https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activestorage/CVE-2026-33195.yml
- https://nvd.nist.gov/vuln/detail/CVE-2026-33195
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33195.json
- https://www.cve.org/CVERecord?id=CVE-2026-33195