critical
CVE-2022-30123
rubygem-rack: crafted requests can cause shell escape sequences
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
GHSA10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Red Hat10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, GHSA, Ruby Advisory DB. Rated lower by Red Hat (high), Amazon (high), Oracle (high), Ubuntu (medium).
Description
A sequence injection vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 which could allow is a possible shell escape in the Lint and CommonLogger components of Rack.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| rubygems::GitHub Security Advisory RubyGems | rack | 2.0.9.1, 2.1.4.1, 2.2.3.1 |
| rubygems::Ruby Advisory Database | rack | ~> 2.0.9, >= 2.0.9.1, ~> 2.1.4, >= 2.1.4.1, >= 2.2.3.1 |
| amazon linux 2 | pcs, pcs-debuginfo, pcs-snmp | 0.9.169-3.amzn2.1.2 |
| debian 10 | ruby-rack | 2.0.6-3+deb10u1 |
| debian 11 | ruby-rack | 2.1.4-3+deb11u1 |
| debian 12 | ruby-rack | 2.2.4-1 |
| debian 13 | ruby-rack | 2.2.4-1 |
| debian 14 | ruby-rack | 2.2.4-1 |
| echo | ruby-rack | 2.2.4-1 |
| Oracle Linux 7 | pcs, pcs-snmp | 0.9.169-3.0.1.el7_9.3 |
| rapidfort ubuntu 20.04 | ruby-rack | 0:2.1.4-5ubuntu1.1 |
| rapidfort ubuntu 22.04 | ruby-rack | 0:2.1.4-5ubuntu1.1 |
Show all 22 entries from 19 sources
| Source | Package | Fixed in |
|---|---|---|
| rubygems::GitHub Security Advisory RubyGems | rack | 2.0.9.1, 2.1.4.1, 2.2.3.1 |
| rubygems::Ruby Advisory Database | rack | ~> 2.0.9, >= 2.0.9.1, ~> 2.1.4, >= 2.1.4.1, >= 2.2.3.1 |
| amazon linux 2 | pcs | 0.9.169-3.amzn2.1.2 |
| amazon linux 2 | pcs-debuginfo | 0.9.169-3.amzn2.1.2 |
| amazon linux 2 | pcs-snmp | 0.9.169-3.amzn2.1.2 |
| debian 10 | ruby-rack | 2.0.6-3+deb10u1 |
| debian 11 | ruby-rack | 2.1.4-3+deb11u1 |
| debian 12 | ruby-rack | 2.2.4-1 |
| debian 13 | ruby-rack | 2.2.4-1 |
| debian 14 | ruby-rack | 2.2.4-1 |
| echo | ruby-rack | 2.2.4-1 |
| Oracle Linux 7 | pcs | 0.9.169-3.0.1.el7_9.3 |
| Oracle Linux 7 | pcs-snmp | 0.9.169-3.0.1.el7_9.3 |
| rapidfort ubuntu 20.04 | ruby-rack | 0:2.1.4-5ubuntu1.1 |
| rapidfort ubuntu 22.04 | ruby-rack | 0:2.1.4-5ubuntu1.1 |
| rapidfort ubuntu 24.04 | ruby-rack | 0:2.1.4-5ubuntu1.1 |
| Red Hat | rubygem-rack | no fix listed |
| ubuntu 14.04-ESM | ruby-rack | 1.5.2-3+deb8u3ubuntu1~esm4 |
| ubuntu 16.04-ESM | ruby-rack | 1.6.4-3ubuntu0.2+esm2 |
| ubuntu 18.04-ESM | ruby-rack | 1.6.4-4ubuntu0.2+esm2 |
| ubuntu 20.04-ESM | ruby-rack | 2.0.7-2ubuntu0.1+esm2 |
| ubuntu 22.04 | ruby-rack | 2.1.4-5ubuntu1.1 |
References
- https://access.redhat.com/security/cve/CVE-2022-30123
- https://discuss.rubyonrails.org/t/cve-2022-30123-possible-shell-escape-sequence-injection-vulnerability-in-rack/80728
- https://github.com/advisories/GHSA-wq4h-7r42-5hrr
- https://github.com/rack/rack
- https://github.com/rack/rack/commit/b426cc224908ec6ed6eb8729325392b048215d88
- https://github.com/rack/rack/commit/b426cc224908ec6ed6eb8729325392b048215d88%20%28main%29
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2022-30123.yml
- https://groups.google.com/g/ruby-security-ann/c/LWB10kWzag8
All 19 references
- https://linux.oracle.com/cve/CVE-2022-30123.html
- https://linux.oracle.com/errata/ELSA-2022-7343.html
- https://nvd.nist.gov/vuln/detail/CVE-2022-30123
- https://security.gentoo.org/glsa/202310-18
- https://security.netapp.com/advisory/ntap-20231208-0011
- https://security.netapp.com/advisory/ntap-20231208-0011/
- https://ubuntu.com/security/notices/USN-5253-1
- https://ubuntu.com/security/notices/USN-5896-1
- https://ubuntu.com/security/notices/USN-7036-1
- https://www.cve.org/CVERecord?id=CVE-2022-30123
- https://www.debian.org/security/2023/dsa-5530