CVE-2026-40347 Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted multipart/form-data requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary...

CVE-2026-40347

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted multipart/form-data requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary...

CVE-2026-40347 Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted multipart/form-data requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary...

CVE-2026-40347 Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted multipart/form-data requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary...

CVE-2026-40347

The CVE-2026-40347 entry concerns Python-Multipart. Versions prior to 0.0.26 are vulnerable to a denial-of-service when parsing crafted multipart/form-data with large preambles/epilogues. The fix (0.0.26+) skips ahead on leading CR/LF data and discards epilogue data after the closing boundary. Af...

CVE-2025-71176 vulnerabilities

Vulnerabilities for packages: py3-cassandra-medusa, open-webui...

cpython: Excessive read buffering DoS in http.client

A flaw was found in the http.client module in the Python standard library. When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This issue allows a malicious server to cause the client to read large amounts of data into...

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,...

python: Python: Information disclosure and arbitrary code execution via remote debugging with a malicious process.

A flaw was found in Python. A malicious Python process could exploit the "profiling.sampling" module and "asyncio introspection capabilities" to read and write memory addresses within a privileged process. This vulnerability occurs when the privileged process connects to the malicious process via...

python: Quadratic complexity in os.path.expandvars() with user-controlled template

A vulnerability in Python’s os.path.expandvars function that can cause performance degradation. When processing specially crafted, user-controlled input with nested environment variable patterns, the function exhibits quadratic time complexity, potentially leading to excessive CPU usage and denia...

python: Python: HTTP header injection via CR/LF in proxy tunnel headers

A flaw was found in Python. This vulnerability allows for the injection of extra information into HTTP communication. Specifically, the system does not properly prevent special characters carriage return and line feed from being included in HTTP client proxy tunnel headers or host fields...

cpython: Stack overflow parsing XML with deeply nested DTD content models

A stack overflow flaw has been discovered in the python pyexpat module. When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs. This will result in a program crash...

python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API

A flaw was found in the Python webbrowser.open API. If a specially crafted URL containing "%action" is processed, an attacker could bypass a previous mitigation for CVE-2026-4519. This bypass allows for command injection into the underlying shell, potentially leading to arbitrary code execution...

cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service

A flaw was found in cpython. This vulnerability allows impacted availability via a quadratic algorithm in xml.dom.minidom methods, such as appendChild, when building excessively nested documents due to a dependency on clearidcache...

cpython: Header injection via newlines in data URL mediatype in Python

Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

cpython: POP3 command injection in user-controlled commands

A flaw was found in the poplib module in the Python standard library. The poplib module does not reject control characters, such as newlines, in user-controlled input passed to POP3 commands. This issue allows an attacker to inject additional commands to be executed in the POP3 server...

python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

A flaw was found in Python's decompression modules, including lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python3.12: python3.12-3.12.13-3.hum1 aarch64, x8664 python3.12-debug-3.12.13-3.hum1 aarch64, x8664 python3.12-devel-3.12.13-3.hum1 aarch64, x8664 python3.12-idle-3.12.13-3.hum1 aarch64, x8664...

cpython: Incomplete control character validation in http.cookies

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update, |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

cpython: IMAP command injection in user-controlled commands

A flaw was found in the imaplib module in the Python standard library. The imaplib module does not reject control characters, such as newlines, in user-controlled input passed to IMAP commands. This issue allows an attacker to inject additional commands to be executed in the IMAP server...