CVE-2023-27539
5.3CVSSMEDIUM
Description
There is a denial of service vulnerability in the header parsing component of Rack.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:LAvailabilityLow
Weaknesses
Affected Products
and 4 more affected products View all →
Exploitability
1 exploit source identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
References
https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466
discuss.rubyonrails.org
https://github.com/advisories/GHSA-c6qg-cjj8-47qp
github.com
https://github.com/rack/rack/commit/231ef369ad0b542575fb36c74fcfcfabcf6c530c
github.com
and 14 more references View all →
Timeline
Published
Jan 9, 2025
Last Updated
Oct 10, 2025
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