cpython: email header injection due to unquoted newlines

A flaw was found in the email module in the Python standard library. When serializing an email message, the BytesGenerator class fails to properly quote newline characters for email headers. This issue is exploitable when the LiteralHeader class is used as it does not respect email folding rules,...

GHSA-3RCM-VJRC-P45J JustHTML has a Sanitizer Bypass (in Markdown)

Summary tomarkdown does not sufficiently escape text content that looks like HTML. As a result, untrusted input that is safe in tohtml can become raw HTML in Markdown output. This is not specific to tokenizer raw-text states like , , or , although those states can trigger the behavior. The root...

Cross-site Scripting (XSS)

Overview justhtml is an A pure Python HTML5 parser that just works. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the tomarkdown function. An attacker can inject arbitrary HTML content by supplying specially crafted input that includes HTML-significant characters...

JustHTML has a Sanitizer Bypass (in Markdown)

Summary tomarkdown does not sufficiently escape text content that looks like HTML. As a result, untrusted input that is safe in tohtml can become raw HTML in Markdown output. This is not specific to tokenizer raw-text states like , , or , although those states can trigger the behavior. The root...

Cross-site Scripting (XSS)

Overview justhtml is an A pure Python HTML5 parser that just works. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the serialization process of raw-text elements such as script and style when a custom sanitization policy retains these elements. An attacker can...

JustHTML Affected by Mutation XSS via Literal Text Serialization in Raw Text Elements (style/script)

Summary Sanitized DOM trees can be unsafe to serialize when a custom policy allows raw-text elements such as or . The issue affects DOM trees that are constructed or modified programmatically and then passed through sanitizedom with a policy that keeps these elements. Text nodes inside and are...

GHSA-C8RR-9GXC-JPRV UltraJSON has an integer overflow handling large indent leads to buffer overflow or infinite loop

Summary ujson.dumps crashes the Python interpreter segmentation fault when the product of the indent parameter and the nested depth of the input exceeds INT32MAX. It can also get stuck in an infinite loop if the indent is a large negative number. Both are caused by an integer overflow/underflow...

TYPO3 Mailqueue 安全漏洞

TYPO3 Mailqueue is an extension component developed by Elias Häußler, designed for managing and sending email queues. TYPO3 Mailqueue has a security vulnerability, which stems from the extension’s failure to correctly define the allowed classes used for deserialization when transmitting failed...

openSUSE Security Advisory (SUSE-SU-2026:0873-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE: Security Advisory (SUSE-SU-2026:0897-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

PT-2026-25815

Summary LeafKit HTML-escaping is not working correctly when a template prints a collection Array / Dictionary via value. This can result in XSS, allowing potentially untrusted input to be rendered unescaped. Details LeafKit attempts to escape expressions during serialization, but due to...

Security update for python3

This update for python3 fixes the following issues: CVE-2026-1299: header injection when an email is serialized due to improper newline quoting in BytesGenerator bsc1257181. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

SUSE-SU-2026:0897-1 Security update for python3

This update for python3 fixes the following issues: - CVE-2026-1299: header injection when an email is serialized due to improper newline quoting in BytesGenerator bsc1257181...

Security update for python36

This update for python36 fixes the following issues: CVE-2026-1299: header injection when an email is serialized due to improper newline quoting in BytesGenerator bsc1257181. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

SUSE-SU-2026:0884-1 Security update for python36

This update for python36 fixes the following issues: - CVE-2026-1299: header injection when an email is serialized due to improper newline quoting in BytesGenerator bsc1257181...

EUVD-2026-11492

A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization...

CVE-2026-3967 Alfresco Activiti Process Variable Serialization System SerializableType.java createObjectInputStream deserialization

A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization...

CVE-2026-3967

Alfresco Activiti up to versions 7.19/8.8.0 is affected by a deserialization flaw in the function deserialize/createObjectInputStream of activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java within the Process Variable Serialization System. This leads...

CVE-2026-3967

A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization...

PT-2026-24898

A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization...