JLSEC-2026-392

A malicious server can serve excessive amounts of Set-Cookie: headers in a HTTP response to curl and curl 7.84.0 stores all of them. A sufficiently large amount of big cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger th...

Astra Linux – Vulnerability in Ruby 3.1

In the CGI gem before version 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service DoS vulnerability. This method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumpti...

CGI: Denial of Service in CGI::Cookie.parse

A flaw was found in Ruby's CGI gem. Processing specially crafted large cookies with the CGI::Cookie.parse method can cause excessive resource consumption due to a missing limit on the length of the raw cookie value, resulting in a denial of service...

CVE-2025-27219

In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service DoS vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when...

SUSE CVE-2025-27219

In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service DoS vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when...

A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this or other servers to which the cookies match create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.This denial state might remain for as long as the same cookies are kept match and haven't expired. Due to cookie matching rules a server on `foo.example.com` can set cookies that also would match for `bar.example.com` making it it possible for a "sister server" to effectively cause a denial of service for a sibling site on the same second level domain using this method.

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CVE-2018-10731

All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies a different vulnerability than CVE-2018-10728...

KDE Konqueror 3.5.6 - Cookie Handling Denial of Service

source: https://www.securityfocus.com/bid/26435/info KDE Konqueror is prone to a remote denial-of-service vulnerability because it fails to handle overly large cookies. An attacker may exploit this vulnerability to cause Konqueror to crash, resulting in denial-of-service conditions. Konqueror 3.5...