CVE-2026-0818

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

EUVD-2026-4880

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird 147.0.1 and Thunderbird 140.7.1...

CVE-2026-0818

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

CVE-2026-0818

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

CVE-2026-0818 CSS-based exfiltration of the content from partially encrypted emails when allowing remote content

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

CVE-2026-0818

Mozilla Thunderbird versions prior to 147.0.1 and 140.7.1 are vulnerable to a CSS-based exfiltration of content from partially encrypted emails. When a user requests to decrypt an inline OpenPGP message embedded within an HTML-formatted email, the decrypted content is rendered while the outer mes...

CVE-2026-0818 CSS-based exfiltration of the content from partially encrypted emails when allowing remote content

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

CVE-2026-0818

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

Security Vulnerabilities fixed in Thunderbird 140.7.1 — Mozilla

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

Security Vulnerabilities fixed in Thunderbird 147.0.1 — Mozilla

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If...

PT-2026-5077

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 147.0.1 Thunderbird versions prior to 140.7.1 Description A flaw exists that could allow for CSS-based exfiltration of content from partially encrypted emails when remote content is permitted. This could potential...

EUVD-2023-45011

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2019-10734

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In KDE Trojita 0.7, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted parts...

Linux Distros Unpatched Vulnerability : CVE-2019-10735

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Claws Mail 3.14.1, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub- parts within a crafted multipart email. The encrypted...

Measuring the Carbon Footprint of Cryptographic Privacy-Enhancing Technologies

Privacy-enhancing technologies PETs have attracted significant attention in response to privacy regulations, driving the development of applications that prioritize user data protection. At the same time, the information and communication technology ICT sector faces growing pressure to reduce its...

PT-2025-7616 · Debian · Debian

Name of the Vulnerable Software and Affected Versions: No specific software or versions mentioned, use: affected versions not specified Description: The issue concerns information disclosure of S/MIME encrypted emails. Recommendations: At the moment, there is no information about a newer version...

CVE-2023-40440

This issue was addressed with improved state management of S/MIME encrypted emails. This issue is fixed in macOS Monterey 12.6.8. A S/MIME encrypted email may be inadvertently sent unencrypted...

CVE-2023-40440: Undefined Security Weakness

This issue was addressed with improved state management of S/MIME encrypted emails. This issue is fixed in macOS Monterey 12.6.8. A S/MIME encrypted email may be inadvertently sent unencrypted...

SUSE CVE-2019-10740

In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted parts can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the...

SUSE CVE-2019-10734

In KDE Trojita 0.7, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted parts can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the...