Home/CVE/Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexp
CVE

CVE-2024-26141

Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexp

Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue.

Vulnerable applications will use the Rack::File middleware or the Rack::Utils.byte_ranges methods (this includes Rails applications). The vulnerability is fixed in 3.0.9.1 and 2.2.8.1.

MEDIUM · CVSS 5.8 EPSS 0.0041
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

3
rack>= 1.3.0 and < 2.2.8.1
rack>= 3.0.0 and < 3.0.9.1
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 LOW fixed in 3.0.9.1
⚠

Public Exploits & PoCs

3
pocdiscuss.rubyonrails.org · 84944discuss.rubyonrails.org
pocgithub.com · GHSA-xj5v-6v4g-jfw6github.com
pocgithub.com · CVE-2024-26141.ymlgithub.com
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v3.1 · security-advisories@github.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 NVD29 Feb 2024 · 12:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
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

25
suse-csafSUSE-SU-2026:1964-1
suse-csafSUSE-SU-2026:1745-1
suse-csafopenSUSE-SU-2026:10508-1
suse-csafopenSUSE-SU-2026:10358-1
suse-csafopenSUSE-SU-2026:10286-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/rack/rack/commit/4849132bef471adb21131980df745f4bb84de2d9Patch
https://github.com/rack/rack/commit/62457686b26d33a15a254c7768c2076e8e02b48bPatch
https://lists.debian.org/debian-lts-announce/2024/04/msg00022.htmlMailing List
https://security.netapp.com/advisory/ntap-20240510-0007/Third Party Advisory
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