Home/CVE/A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 tha
CVE

CVE-2020-8184

A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 tha

A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix.

HIGH · CVSS 7.5 EPSS 0.00811
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-784Reliance on Cookies without Validation and Integrity Checking in a Security Decision
▤

Affected Products & Versions

4
rack project rack< 2.1.4
rack project rack>= 2.2.0 and < 2.2.3
debian linuxall versions
canonical ubuntu 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 2.1.4
⚠

Public Exploits & PoCs

1
pochackerone.com · 895727hackerone.com
▣

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 NVD19 Jun 2020 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2026:10358-1
suse-csafopenSUSE-SU-2026:10286-1
suse-csafopenSUSE-SU-2025:14875-1
suse-csafopenSUSE-SU-2025:14811-1
suse-csafopenSUSE-SU-2024:10589-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://groups.google.com/g/rubyonrails-security/c/OWtmozPH9AkMailing ListPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00006.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00038.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/4561-1/Third Party Advisory
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