cpython: Missing character filtering in Python

Missing character filtering has been discovered in Python. When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not...

CVE-2026-34975 Plunk has a CRLF Email Header Injection in raw MIME message construction allows authenticated API user to inject arbitrary email headers

Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supplied values for from.name, subject, custom header keys/values, and attachment filenames were interpolated directly into raw MIME...

CVE-2026-34975 Plunk has a CRLF Email Header Injection in raw MIME message construction allows authenticated API user to inject arbitrary email headers

Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supplied values for from.name, subject, custom header keys/values, and attachment filenames were interpolated directly into raw MIME...

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,...

Moderate: Red Hat Security Advisory: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 7 : python3 (RHSA-2026:6464)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6464 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...

SUSE-SU-2026:20951-1 Security update for python311

This update for python311 fixes the following issues: - CVE-2026-1299: header injection when an email is serialized due to improper newline quoting bsc1257181. - CVE-2026-2297: validation bypass via incorrectly handled hook in FileLoader bsc1259240...

Moderate: Red Hat Security Advisory: python3.11 security update

An update for python3.11 is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available f...

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,...

RHEL 9 : python3.11 (RHSA-2026:6253)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6253 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...

Moderate: Red Hat Security Advisory: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring Syst...

RHEL 8 : python3 (RHSA-2026:6008)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6008 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...

CVE-2026-2442 Pagelayer <= 2.0.7 - Improper Neutralization of CRLF Sequences to Unauthenticated Email Header Injection via 'email'

The Page Builder: Pagelayer – Drag and Drop website builder plugin for WordPress is vulnerable to Improper Neutralization of CRLF Sequences 'CRLF Injection' in all versions up to, and including, 2.0.7. This is due to the contact form handler performing placeholder substitution on...

CVE-2026-2442 Pagelayer <= 2.0.7 - Improper Neutralization of CRLF Sequences to Unauthenticated Email Header Injection via 'email'

The Page Builder: Pagelayer – Drag and Drop website builder plugin for WordPress is vulnerable to Improper Neutralization of CRLF Sequences 'CRLF Injection' in all versions up to, and including, 2.0.7. This is due to the contact form handler performing placeholder substitution on...

WordPress Pagelayer plugin <= 2.0.7 - Improper Neutralization of CRLF Sequences to Unauthenticated Email Header Injection via 'email' vulnerability

Improper Neutralization of CRLF Sequences to Unauthenticated Email Header Injection via 'email' vulnerability discovered by Drew Webber mcdruid in WordPress Plugin PageLayer versions = 2.0.7...

PT-2026-28338

Name of the Vulnerable Software and Affected Versions Page Builder: Pagelayer versions up to and including 2.0.7 Description The Page Builder: Pagelayer WordPress plugin is susceptible to CRLF Injection due to improper handling of Carriage Return and Line Feed characters in the contact form...

SUSE SLES15: libpython3_11-1_0 / python311 / python311-base / python311-curses / etc (SUSE-SU-2026:1117-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1117-1 advisory. Update to python 3.11.15: - CVE-2025-6075: quadratic complexity in os.path.expandvars bsc1252974. - CVE-2025-11468: header injectio...

python3.12 security update

An update is available for python3.12. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Python is an interpreted, interactive, object-oriented programming...

RLSA-2026:4713 Moderate: python3.12 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

RockyLinux 10 : python3.12 (RLSA-2026:4713)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:4713 advisory. cpython: wsgiref.headers.Headers allows header newline injection in Python CVE-2026-0865 cpython: IMAP command injection in user-controlled commands...