Home/CVE/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
CVE

CVE-2022-30123

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

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.

CRITICAL · CVSS 10 EPSS 0.02323
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-150Improper Neutralization of Escape, Meta, or Control Sequences
▤

Affected Products & Versions

4
rack project rack< 2.0.9.1
rack project rack>= 2.1.0 and < 2.1.4.1
rack project rack>= 2.2.0 and < 2.2.3.1
debian linuxall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
RubyGems rack CRITICAL fixed in 2.0.9.1
▣

Scoring & Timeline

10
CRITICAL · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Dec 2022 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

18
suse-csafopenSUSE-SU-2026:10358-1
suse-csafopenSUSE-SU-2026:10286-1
suse-csafopenSUSE-SU-2025:14875-1
suse-csafopenSUSE-SU-2025:14811-1
usnUSN-7036-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://discuss.rubyonrails.org/t/cve-2022-30123-possible-shell-escape-sequence-injection-vulnerability-in-rack/80728Third Party Advisory
https://security.gentoo.org/glsa/202310-18Third Party Advisory
https://security.netapp.com/advisory/ntap-20231208-0011/
https://www.debian.org/security/2023/dsa-5530Third Party Advisory
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