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CVE-2024-26146

Possible Denial of Service Vulnerability in Rack Header Parsing

Published: Feb 28, 2024Updated: Feb 14, 2025 Sources: CVE List NVD GHSA BDUCWE-1333
5.3MEDIUM
NVD MITRE
EPSS Score
2.0%
Top 21.2%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-1333

Affected Products

ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Common EditionOn-premOS
Operating Systems / linux-distro
ПК СВ "Брест"On-prem
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
Leah Neukirchen
individual-dev
RackLibrary
OSS Libraries / rubygems
АО «НППКТ»
commercial·RU
ОСОН ОСнова ОnyxOn-premOS
Operating Systems / linux-distro
rack
oss-project
rackLibrary
OSS Libraries / web-framework
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
and 1 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://discuss.rubyonrails.org/t/possible-denial-of-service-vulnerability-in-rack-header-parsing/84942
discuss.rubyonrails.org
https://github.com/rack/rack/commit/30b8e39a578b25d4bdcc082c1c52c6f164b59716
github.com
https://github.com/rack/rack/commit/6c5d90bdcec0949f7ba06db62fb740dab394b582
github.com
and 20 more references View all →

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