thunderbird: Thunderbird: Memory safety violations via maliciously crafted mail headers

A flaw was found in Thunderbird where a maliciously constructed mail header could lead to ambiguous parsing. This vulnerability could result in multiple mail header fields being incorrectly interpreted as one, or cause memory safety violations. A remote attacker could potentially exploit this to...

thunderbird: One byte overflow read in mail parser

A flaw was found in Thunderbird. A remote attacker could exploit this vulnerability by sending a maliciously constructed mail header. This could lead to a one-byte read past the end of a buffer, potentially resulting in information disclosure or other unpredictable behavior...

CVE-2026-100267: Inefficient Regular Expression Complexity

In JetBrains YouTrack before 2026.2.19197 reDoS attack was possible via mailbox regex mail-rule filters...

PT-2026-103314

In JetBrains YouTrack before 2026.2.19197 reDoS attack was possible via mailbox regex mail-rule filters...

PT-2026-103532

Name of the Vulnerable Software and Affected Versions Kiteworks Email Protection Gateway versions prior to 9.5.0 Description The software is subject to Unsafe Reflection, a condition where an application allows the loading of classes or methods dynamically without sufficient validation. This occu...

CVE-2026-102094: Use of Externally-Controlled Input to Select Classes or Code

Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Unsafe Reflection and does not sufficiently restrict the code that the mail-processing pipeline could load from an imported rule configuration. An authenticated administrator with mail-rule configuration privileges could cau...

AlmaLinux 8 : container-tools:rhel8 (ALSA-2026:63163)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:63163 advisory. net/mail: golang: net/mail: Denial of Service via pathological email address parsing CVE-2026-42499 encoding/asn1: golang: Go encoding/asn1: Denial of...

Important: Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update

An update is now available for Red Hat Lightspeed formerly Insights for Runtimes on RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

CVE-2026-90918

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

CVE-2026-90918

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

CVE-2026-90918 Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

CVE-2026-90918

The Joomla! Core software is vulnerable to a Cross-Site Scripting (XSS) flaw in its HTML Mail Templates feature. The root cause is a lack of an escaping mechanism , which allows for XSS vectors across multiple extensions. This issue affects Joomla versions 4.0.0-5.4.8 and 6.0.0-6.1.3 . No specifi...

CVE-2026-90918 Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

EUVD-2026-89080

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

thunderbird: Thunderbird: Memory safety violations via maliciously crafted mail headers

A flaw was found in Thunderbird where a maliciously constructed mail header could lead to ambiguous parsing. This vulnerability could result in multiple mail header fields being incorrectly interpreted as one, or cause memory safety violations. A remote attacker could potentially exploit this to...

thunderbird: One byte overflow read in mail parser

A flaw was found in Thunderbird. A remote attacker could exploit this vulnerability by sending a maliciously constructed mail header. This could lead to a one-byte read past the end of a buffer, potentially resulting in information disclosure or other unpredictable behavior...

CLEANSTART-2026-GU43525 In Jakarta Mail versions prior to 2

Security vulnerability affects the sonarqube package. In Jakarta Mail versions prior to 2...

CVE-2026-90918: Improper Neutralization of Input During Web Page Generation

Joomla! Core - 20260908 - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions...

PT-2026-102694

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.8 Joomla! Core versions 6.0.0 through 6.1.3 Description The mail template feature lacks an escaping mechanism, which allows for Cross-Site Scripting XSS vectors across multiple extensions. XSS is a...

Important: thunderbird

Issue Overview: Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. CVE-2026-84639 A maliciously constructed mail header could lead to a one byte read past the...