Home/CVE/A possible denial of service vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 in the multipart parsing compo
CVE

CVE-2022-30122

A possible denial of service vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 in the multipart parsing compo

A possible denial of service vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 in the multipart parsing component of Rack.

HIGH · CVSS 7.5 EPSS 0.01042
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1333Inefficient Regular Expression Complexity
CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

4
rack project rack>= 1.2 and < 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 HIGH fixed in 2.0.9.1
▣

Scoring & Timeline

7.5
HIGH · 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:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

17
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-2022-30122-denial-of-service-vulnerability-in-rack-multipart-parsing/80729Third Party Advisory
https://security.gentoo.org/glsa/202310-18Third Party Advisory
https://security.netapp.com/advisory/ntap-20231208-0012/Third Party Advisory
https://www.debian.org/security/2023/dsa-5530Third Party Advisory
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