CVE-2026-27448 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

Parse Server LiveQuery subscription with invalid regular expression crashes server

Impact A remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients. Patches...

Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle

Executive Summary A cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registers RSA15 in its default algorithm registry without requiring explicit opt-in,...

GHSA-VP96-HXJ8-P424 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

If a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Unhandled exceptions now result in rejecting the...

Not Failing Securely ('Failing Open')

Overview Affected versions of this package are vulnerable to Not Failing Securely 'Failing Open' via the settlsextservernamecallback function. An attacker can bypass security-sensitive checks by causing an unhandled exception in the callback, which results in the connection being accepted. If a...

pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

If a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Unhandled exceptions now result in rejecting the...

PT-2026-25778

Name of the Vulnerable Software and Affected Versions pyOpenSSL versions 0.14.0 through 25.9.9 Description pyOpenSSL is a Python wrapper around the OpenSSL library. If a user-provided callback to the set tlsext servername callback function raised an unhandled exception, a connection would be...

OESA-2026-1564 exiv2 security update

Exiv2 is a Cross-platform C++ library and a command line utility to manage image metadata. It provides fast and easy read and write access to the Exif, IPTC and XMP metadata and the ICC Profile embedded within digital images in various formats. Security Fixes: An out-of-bounds read was found in...

OESA-2026-1555 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ excepti...

OESA-2026-1554 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ excepti...

OESA-2026-1553 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ excepti...

OESA-2026-1552 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ excepti...

CVE-2026-31884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, division by zero in MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % blocksize where blocksize = context-common.format.nBlockAlign...

UBUNTU-CVE-2026-31884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, division by zero in MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % blocksize where blocksize = context-common.format.nBlockAlign...

CVE-2026-31949 LibreChat Denial of Service (DoS) via Unhandled Exception in DELETE /api/convos

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.3-rc1, a Denial of Service DoS vulnerability exists in the DELETE /api/convos endpoint that allows an authenticated attacker to crash the Node.js server process by sending malformed requests. The DELETE /api/convos route handler...

CVE-2026-31884 FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, division by zero in MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % blocksize where blocksize = context-common.format.nBlockAlign...

AutoMapper Vulnerable to Denial of Service (DoS) via Uncontrolled Recursion

AutoMapper is vulnerable to a Denial of Service DoS attack. When mapping deeply nested object graphs, the library uses recursive method calls without enforcing a default maximum depth limit. This allows an attacker to provide a specially crafted object graph that exhausts the thread's stack memor...

Uncaught Exception

Overview org.webjars.npm:undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Uncaught Exception through improper validation of the servermaxwindowbits parameter in the permessage-deflate extension. An attacker can cause the process...

Uncaught Exception

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Uncaught Exception through improper validation of the servermaxwindowbits parameter in the permessage-deflate extension. An attacker can cause the process to terminate...

DEBIAN-CVE-2026-2229

ImpactThe undici WebSocket client is vulnerable to a denial-of-service attack due to improper validation of the servermaxwindowbits parameter in the permessage-deflate extension. When a WebSocket client connects to a server, it automatically advertises support for permessage-deflate compression. ...