Description
There is a denial of service vulnerability in the Content-Disposition parsingcomponent of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1. This could allow an attacker to craft an input that can cause Content-Disposition header parsing in Rackto take an unexpected amount of time, possibly resulting in a denial ofservice attack vector. This header is used typically used in multipartparsing. Any applications that parse multipart posts using Rack (virtuallyall Rails applications) are impacted.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | https://github.com/rack/rack | 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1 | — |
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 | ruby-rack | 2.2.4-3 | — |
| Debian 13 | ruby-rack | 2.2.4-3 | — |
| Debian 12 | ruby-rack | 2.2.4-3 | — |
| Debian 11 | ruby-rack | 2.1.4-3+deb11u1 | DSA-5530-1 |
| Debian 10 | ruby-rack | 2.0.6-3+deb10u2 | DLA-3298-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | ruby-rack | 2.1.4-5ubuntu1.1 | USN-7036-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | ruby-rack | 2.1.4-5ubuntu1+esm3 | USN-5910-1 |
| Ubuntu Pro 20.04 LTS | ruby-rack | 2.0.7-2ubuntu0.1+esm3 | USN-5910-1 |
| Ubuntu Pro 18.04 LTS | ruby-rack | 1.6.4-4ubuntu0.2+esm4 | USN-5910-1 |
| Ubuntu Pro 16.04 LTS | ruby-rack | 1.6.4-3ubuntu0.2+esm4 | USN-5910-1 |
| Ubuntu Pro 14.04 LTS | ruby-rack | 1.5.2-3+deb8u3ubuntu1~esm6 | USN-5910-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite Utils 6 | foreman +1 | 3.7.0.9-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | foreman +1 | 3.7.0.9-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | puppet-agent | 7.26.0-3.el8sat | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | puppetserver | 7.11.0-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-django +1 | 3.2.21-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-future +1 | 0.18.3-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-gitpython +1 | 3.1.32-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-pulp-ansible +1 | 1:0.16.0-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-requests +1 | 2.31.0-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | python-sqlparse +1 | 0.4.4-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite Capsule 6 | rubygem-rack | 2.2.7-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | foreman +13 | 3.7.0.9-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | puppet-agent | 7.26.0-3.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | puppetserver | 7.11.0-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-django +1 | 3.2.21-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-future +1 | 0.18.3-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-gitpython +1 | 3.1.32-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-pulp-ansible +1 | 1:0.16.0-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-requests +1 | 2.31.0-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | python-sqlparse +1 | 0.4.4-1.el8pc | RHSA-2023:6818 |
| Red Hat Satellite 6 | rubygem-actionpack +2 | 6.1.7.3-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | rubygem-git | 1.18.0-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | rubygem-globalid | 1.1.0-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | rubygem-kubeclient | 4.10.1-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | rubygem-rack | 2.2.7-1.el8sat | RHSA-2023:6818 |
| Red Hat Satellite 6 | yggdrasil-worker-forwarder | 0.0.3-1.el8sat | RHSA-2023:6818 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | rubygem-rack | 2.0.8-150000.3.12.1 | SUSE-SU-2023:0276-1 |
| SLES 15 SP3 | rubygem-rack | 2.0.8-150000.3.12.1 | SUSE-SU-2023:0276-1 |
| SLES 15 SP2 | rubygem-rack | 2.0.8-150000.3.12.1 | SUSE-SU-2023:0276-1 |
| SLES 15 SP1 | rubygem-rack | 2.0.8-150000.3.12.1 | SUSE-SU-2023:0276-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud Crowbar 9 | rubygem-rack | 1.6.13-3.16.1 | SUSE-SU-2023:0649-1 |
| SUSE OpenStack Cloud Crowbar 8 | rubygem-rack | 1.6.13-3.16.1 | SUSE-SU-2023:0649-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ruby3.2-rubygem-rack | 3.0.7-1.2 | openSUSE-SU-2024:13167-1 |
| openSUSE Tumbleweed | ruby3.2-rubygem-rack-2.2 | 2.2.7-1.1 | openSUSE-SU-2024:12974-1 |
| openSUSE Tumbleweed | rubygem-rack | 3.0.4.1-1.1 | openSUSE-SU-2026:10358-1, openSUSE-SU-2025:14875-1, openSUSE-SU-2024:13726-1 |
| openSUSE Tumbleweed | rubygem-rack-2.2 | 2.2.6.2-1.1 | openSUSE-SU-2026:10286-1, openSUSE-SU-2025:14811-1, openSUSE-SU-2024:13727-1 |
| openSUSE Leap 15.4 | rubygem-rack | 2.0.8-150000.3.12.1 | SUSE-SU-2023:0276-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | rack | >= 2.0.0, < 2.0.9.2 | 2.0.9.2 | GHSA-93pm-5p5f-3ghx |
| RubyGems | rack | >= 2.1.0, < 2.1.4.2 | 2.1.4.2 | GHSA-93pm-5p5f-3ghx |
| RubyGems | rack | >= 2.2.0, < 2.2.6.1 | 2.2.6.1 | GHSA-93pm-5p5f-3ghx |
| RubyGems | rack | >= 3.0.0.0, < 3.0.4.1 | 3.0.4.1 | GHSA-93pm-5p5f-3ghx |
Advisories 17
- RHSA-2023:6818 Red Hat Security Advisory: Satellite 6.14 security and bug fix update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- USN-5910-1 ruby-rack vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- openSUSE-SU-2026:10286-1 ruby4.0-rubygem-rack-2.2-2.2.22-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10358-1 ruby4.0-rubygem-rack-3.1.18-1.3 on GA media SUSE / openSUSE Security Updates · Mar 14, 2026
- DSA-5530-1 ruby-rack - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3298-1 ruby-rack - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-7036-1 ruby-rack vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2025:14811-1 ruby3.4-rubygem-rack-2.2-2.2.11-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13727-1 ruby3.3-rubygem-rack-2.2-2.2.8.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13167-1 ruby3.2-rubygem-rack-3.0.7-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0276-1 Security update for rubygem-rack SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12633-1 ruby3.1-rubygem-rack-3.0.4.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12634-1 ruby3.1-rubygem-rack-2.2-2.2.6.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13726-1 ruby3.3-rubygem-rack-3.0.9.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12974-1 ruby3.2-rubygem-rack-2.2-2.2.7-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0649-1 Security update for rubygem-rack SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14875-1 ruby3.4-rubygem-rack-3.1.12-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025