CVE-2026-63435

A flaw was found in Mail, an internet library for Ruby. The library's decoding of RFC 2047 encoded-words in email headers was vulnerable to an overly greedy charset capture. A remote attacker could exploit this by crafting a malformed encoded-word in an address display name or local part. This...

OESA-2026-4105 rubygem-mail security update

A really Ruby Mail handler. Security Fixes: Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input through qvaluedecode and bvaluedecode in lib/mail/utilities.rb. An attacker can make a display name or local part decode to a different address tha...

Linux Distros Unpatched Vulnerability : CVE-2026-63435

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and...

EUVD-2026-69609

Mail: Email address spoofing via malformed RFC 2047 encoded-words...

Mail: Email address spoofing via malformed RFC 2047 encoded-words

Summary Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode decoded only the first RFC 2047 encoded-word in a string and used an overly greedy pattern to match the charset token. A crafted, malformed encoded-word embedded in an address display name or local part could cause the decoded...

GHSA-MVXR-6M87-MV2Q Mail: Email address spoofing via malformed RFC 2047 encoded-words

Summary Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode decoded only the first RFC 2047 encoded-word in a string and used an overly greedy pattern to match the charset token. A crafted, malformed encoded-word embedded in an address display name or local part could cause the decoded...

SUSE CVE-2026-63435

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

CVE-2026-63435

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

DEBIAN-CVE-2026-63435

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

CVE-2026-63435 Mail: Email address spoofing via malformed RFC 2047 encoded-words

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

CVE-2026-63435 Mail: Email address spoofing via malformed RFC 2047 encoded-words

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

CVE-2026-63435

Mail (Ruby gem for email generation, parsing, and sending) is vulnerable to email address spoofing via malformed RFC 2047 encoded-words prior to version 2.9.1 . The root cause lies in Mail::Utilities.q_value_decode and Mail::Utilities.b_value_decode in lib/mail/utilities.rb, which used a single S...

CVE-2026-63435

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

CVE-2026-63435 Mail: Email address spoofing via malformed RFC 2047 encoded-words

Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode used a single Stringmatch and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle...

PT-2026-84460

Name of the Vulnerable Software and Affected Versions Mail versions prior to 2.9.1 Description Mail is an internet library for Ruby used for email generation, parsing, and sending. The functions q value decode and b value decode within Mail::Utilities use a single Stringmatch and an overly greedy...

Improper Validation of Syntactic Correctness of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input through qvaluedecode and bvaluedecode in lib/mail/utilities.rb. An attacker can make a display name or local part decode to a different address than intended by supplying a malformed...

Email address spoofing via malformed RFC 2047 encoded-words in mail

Summary Mail::Utilities.qvaluedecode and Mail::Utilities.bvaluedecode decoded only the first RFC 2047 encoded-word in a string and used an overly greedy pattern to match the charset token. A crafted, malformed encoded-word embedded in an address display name or local part could cause the decoded...

mutt: heap-based buffer overflow when parsing certain headers

Buffer overflow in copy.c in Mutt before 1.5.23 allows remote attackers to cause a denial of service crash via a crafted RFC2047 header line, related to address expansion...

FreeBSD : bogofilter -- RFC 2047 decoder denial-of-service vulnerability (20)

The following package needs to be updated: bogofilter-qdbm %NASLMINLEVEL 999999 @DEPRECATED@ This script has been deprecated by freebsdpkgf4428842a5834a4c89b7297c3459a1c3.nasl. Disabled on 2011/10/02. C Tenable Network Security, Inc. This script contains information extracted from VuXML : Copyrig...

Дырка в The Bat! (обратный путь в директориях)

Если The Bat! сконфигурирован на отдельное хранение вложенных файлов, если имя файла зашифровано согласно RFC 2047 base 64 или Quoted Printable и содержит '..' то файл будет помещен в директорию более высокого уровня, что позволяет сохранить файл в любой каталог на том же диске...