ruby: Cookie prefix spoofing in CGI::Cookie.parse

A flaw was found in Ruby. RubyGems cgi gem could allow a remote attacker to conduct spoofing attacks caused by the mishandling of security prefixes in cookie names in the CGI::Cookie.parse function. By sending a specially-crafted request, an attacker could perform cookie prefix spoofing attacks...

ruby: WEBrick CGI source disclosure

Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing 1 + plus, 2 %2b encode...

ruby: SMTP command injection via CRLF sequences in RCPT TO or MAIL FROM commands in Net::SMTP

A SMTP command injection flaw was found in the way Ruby's Net::SMTP module handled CRLF sequences in certain SMTP commands. An attacker could potentially use this flaw to inject SMTP commands in a SMTP session in order to facilitate phishing attacks or spam campaigns...

ruby: integer overflow in rb_ary_splice/update/replace() - beg + rlen

Integer overflow in the 1 rbarysplice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2; and 2 the rbaryreplace function in 1.6.x allows context-dependent attackers to trigger memory corruption, aka the "beg +...

ruby: integer overflow in rb_ary_splice/update/replace() - REALLOC_N

Integer overflow in the 1 rbarysplice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22; and 2 the rbaryreplace function in 1.6.x allows context-dependent attackers to trigger memory corruption via unspecified vectors, aka the...

ruby: memory corruption in BigDecimal on 64bit platforms

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service applicati...

ruby: dlopen could open a library with tainted library name

The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed in Apple OS X before 10.11.4 and other products, mishandles tainting, which allows context-dependent attackers to execute arbitrary code or cause a denial of...

ruby: Unsafe parsing of long strings via decode_www_form_component method

The URI.decodewwwformcomponent method in Ruby before 1.9.2-p330 allows remote attackers to cause a denial of service catastrophic regular expression backtracking, resource consumption, or application crash via a crafted string...

ruby: Integer overflows in rb_ary_store()

Multiple integer overflows in the rbarystore function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22 allow context-dependent attackers to execute arbitrary code or cause a denial of service via unknown vectors, a different issue than...

ruby: Unsafe use of alloca in rb_str_format()

The rbstrformat function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allows context-dependent attackers to trigger memory corruption via unspecified vectors related to alloca, a different issue than CVE-2008-2662,...

ruby: off-by-one stack-based buffer overflow in the encodes() function

Off-by-one error in the encodes function in pack.c in Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when using certain format string specifiers, allows context-dependent attackers to cause a denial of service segmentation fault via vectors that trigger a stack-based buffer overflow...

ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host

Ruby's Net::FTP module trusted the IP address included in the FTP server's response to the PASV command. A malicious FTP server could use this to make Ruby applications using the Net::FTP module to connect to arbitrary hosts and use this to perform port scanning or information extraction from...

ruby: REXML billion laughs attack via parameter entity expansion

The REXML parser in Ruby 1.9.x before 1.9.3-p550, 2.0.x before 2.0.0-p594, and 2.1.x before 2.1.4 allows remote attackers to cause a denial of service memory consumption via a crafted XML document, aka an XML Entity Expansion XEE attack...

ruby: Arbitrary heap exposure during a JSON.generate call

A buffer overflow vulnerability was found in the JSON extension of ruby. An attacker with the ability to pass a specially crafted JSON input to the extension could use this flaw to expose the interpreter's heap memory...

CLEANSTART-2026-GE08280 Ruby JSON is a JSON implementation for Ruby

Multiple security vulnerabilities affect the logstash-fips package. Ruby JSON is a JSON implementation for Ruby. See references for individual vulnerability details...

CLEANSTART-2026-RZ30606 Ruby JSON is a JSON implementation for Ruby

Multiple security vulnerabilities affect the logstash-fips package. Ruby JSON is a JSON implementation for Ruby. See references for individual vulnerability details...

BSV Ruby SDK 数据伪造问题漏洞

BSV Ruby SDK is a Ruby development toolkit developed by Simon Bettison for BSV blockchain. Versions of the BSV Ruby SDK from 0.3.1 to 0.8.2 had a data manipulation vulnerability. This vulnerability stemmed from the lack of signature verification when storing certificate records, which could allow...

BSV Ruby SDK 代码问题漏洞

BSV Ruby SDK is a Ruby development toolkit developed by Simon Bettison for BSV blockchain. Versions of the BSV Ruby SDK from 0.1.0 to 0.8.2 contained code vulnerabilities. These vulnerabilities stemmed from incomplete failure detection logic, which could allow applications to accept transactions...

PT-2026-31671

Name of the Vulnerable Software and Affected Versions BSV Ruby SDK versions 0.1.0 through 0.8.1 Description The BSV Ruby SDK's ARC broadcaster incorrectly treats certain failure statuses from the ARC endpoint as successful broadcasts. Specifically, responses with txStatus values of INVALID,...

PT-2026-31672

Name of the Vulnerable Software and Affected Versions BSV Ruby SDK versions 0.3.1 through 0.8.1 BSV Ruby Wallet versions 0.1.2 through 0.3.3 Description The BSV Ruby SDK and Wallet contain a flaw in the acquire certificate function, which does not verify the certifier's signature over the...