Filtered by vendor Ruby-lang
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Total
137 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-46727 | 1 Ruby-lang | 1 Ruby | 2026-05-26 | N/A | 8.1 HIGH |
| An issue was discovered in Ruby 4 before 4.0.5. A race condition leading to a use-after-free in the pthread-based getaddrinfo timeout handler (rb_getaddrinfo in ext/socket/raddrinfo.c) allows a remote attacker who can delay DNS responses near the user-specified timeout to crash a Ruby process that calls Addrinfo.getaddrinfo(..., timeout:) or Socket.tcp(..., resolv_timeout:). Memory-corruption-based exploitation is theoretically possible. The attack could, for example, be carried out through a crafted authoritative DNS server or recursive resolver. | |||||
| CVE-2026-27820 | 1 Ruby-lang | 1 Zlib | 2026-05-21 | N/A | 9.8 CRITICAL |
| zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been fixed in versions 3.0.1, 3.1.2 and 3.2.3. | |||||
| CVE-2026-42245 | 1 Ruby-lang | 1 Net\ | 2026-05-18 | N/A | 7.5 HIGH |
| Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, Net::IMAP::ResponseReader has quadratic time complexity when reading large responses containing many string literals. A hostile server can send responses which are crafted to exhaust the client's CPU for a denial of service attack. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4. | |||||
| CVE-2026-42246 | 1 Ruby-lang | 1 Net\ | 2026-05-18 | N/A | 7.4 HIGH |
| Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4. | |||||
| CVE-2026-42256 | 1 Ruby-lang | 1 Net\ | 2026-05-18 | N/A | 6.5 MEDIUM |
| Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4. | |||||
| CVE-2026-42258 | 1 Ruby-lang | 1 Net\ | 2026-05-18 | N/A | 9.8 CRITICAL |
| Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, symbol arguments to commands are vulnerable to a CRLF Injection / IMAP Command injection via Symbol arguments passed to IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4. | |||||
| CVE-2026-42257 | 1 Ruby-lang | 1 Net\ | 2026-05-18 | N/A | 9.8 CRITICAL |
| Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, several Net::IMAP commands accept a raw string argument that is sent to the server without validation or escaping. If this string is derived from user-controlled input, it may contain contain CRLF sequences, which an attacker can use to inject arbitrary IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4. | |||||
| CVE-2016-7798 | 2 Debian, Ruby-lang | 2 Debian Linux, Openssl | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism. | |||||
| CVE-2017-14064 | 4 Canonical, Debian, Redhat and 1 more | 9 Ubuntu Linux, Debian Linux, Enterprise Linux Desktop and 6 more | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len. | |||||
| CVE-2017-17790 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely. | |||||
| CVE-2017-9225 | 3 Oniguruma Project, Php, Ruby-lang | 3 Oniguruma, Php, Ruby | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of a stack buffer of expand_case_fold_string() during the call to onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow. | |||||
| CVE-2017-9229 | 3 Oniguruma Project, Php, Ruby-lang | 3 Oniguruma, Php, Ruby | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A SIGSEGV occurs in left_adjust_char_head() during regular expression compilation. Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference, normally as an immediate denial-of-service condition. | |||||
| CVE-2017-17405 | 3 Debian, Redhat, Ruby-lang | 8 Debian Linux, Enterprise Linux Desktop, Enterprise Linux Server and 5 more | 2026-05-13 | 9.3 HIGH | 8.8 HIGH |
| Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution. | |||||
| CVE-2017-14033 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string. | |||||
| CVE-2015-9096 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 4.3 MEDIUM | 6.1 MEDIUM |
| Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring. | |||||
| CVE-2017-10784 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 9.3 HIGH | 8.8 HIGH |
| The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name. | |||||
| CVE-2014-6438 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The URI.decode_www_form_component 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. | |||||
| CVE-2017-0898 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 6.4 MEDIUM | 9.1 CRITICAL |
| Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap. | |||||
| CVE-2009-5147 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 7.5 HIGH | 7.3 HIGH |
| DL::dlopen in Ruby 1.8, 1.9.0, 1.9.2, 1.9.3, 2.0.0 before patchlevel 648, and 2.1 before 2.1.8 opens libraries with tainted names. | |||||
| CVE-2017-6181 | 1 Ruby-lang | 1 Ruby | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression. | |||||