protobuf-cpp and protobuf-python have potential Denial of Service issue

SummaryA message parsing and memory management vulnerability in ProtocolBuffer’s C++ and Python implementations can trigger an out of memory OOM failure when processing a specially crafted message, which could lead to a denial of service DoS on services using the libraries.Reporter:...

protobufjs Prototype Manipulation DoS

The vulnerability of the library for working with the Protocol Buffers protocol Protobuf protobufjs is related to uncontrolled changes to object prototype attributes. Exploiting this vulnerability could allow a malicious actor to cause service failures...

protobufjs Prototype Modification Privilege Escalation

The vulnerability of the library for working with the Protocol Buffers protocol Protobuf protobufjs is related to uncontrolled changes to object prototype attributes. Exploiting this vulnerability can allow a malicious actor to enhance their privileges remotely...

protobufjs Decoder Bypass

The vulnerability of the UTF-8 decoder in the Protocol Buffers Protobuf protobufjs library is related to incorrect handling of Unicode characters. Exploiting this vulnerability can allow a malicious actor to bypass existing security mechanisms remotely...

Protocol Buffers toObject Code Execution

The vulnerability of the toObject function in the Protocol Buffers library, which is used for working with Protocol Buffers, is related to incorrect code generation. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code...

Protocol Buffers Decoder DoS

The vulnerability of the decoder in the Protocol Buffers-based library related to Protocol Buffers Protobuf protobufjs is associated with an uncontrolled recursion. Exploiting this vulnerability could allow a malicious actor to cause service failures...

CVE-2026-9002

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002

IBM WebSphere eXtremes Scale is affected in versions 8.6.1.0–8.6.1.6 by an XDF decoder validation issue. The decoder may mishandle deeply nested Protocol Buffers messages and attacker-controlled length prefixes without proper bounds checking, enabling an adjacent attacker to trigger StackOverflow...

EUVD-2026-40379

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002 IBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabled

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002 IBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabled

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002: Uncontrolled Resource Consumption

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

PT-2026-53951

Name of the Vulnerable Software and Affected Versions IBM WebSphere Extreme Scale versions 8.6.1.0 through 8.6.1.6 Description Improper validation in the XDF decoder allows an adjacent attacker to cause a denial of service. The application processes deeply nested Protocol Buffers messages and...

IBM WebSphere eXtreme Scale 8.6.1.0 < 8.6.1.6 (7278346)

The version of IBM WebSphere eXtreme Scale installed on the remote host is prior to 8.6.1.6 IBM. It is, therefore, affected by a vulnerability as referenced in the 7278346 advisory. - IBM WebSphere eXtreme Scale could allow an adjacent attacker to cause a denial of service due to improper...

CVE-2026-45740

A flaw was found in protobufjs. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a crafted JSON descriptor with deeply nested namespace definitions. This can lead to the exhaustion of the JavaScript call stack during descriptor loading, making the...

Security Bulletin: There is a vulnerability in protocol-buffers-schema-3.6.0.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-5758)

Summary There is a vulnerability in protocol-buffers-schema-3.6.0.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite. Vulnerability Details CVEID:CVE-2026-5758 DESCRIPTION: JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0,...

USN-8063-2 protobuf vulnerability

USN-8063-1 fixed a vulnerability in Protocol Buffers. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that Protocol Buffers incorrectly handled recursion when the Python google.protobuf.jsonformat.ParseDict...

USN-8063-2: Protocol Buffers vulnerability

USN-8063-1 fixed a vulnerability in Protocol Buffers. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that Protocol Buffers incorrectly handled recursion when the Python google.protobuf.jsonformat.ParseDict...

SUSE-SU-2026:1653-1 Security update for protobuf

This update for protobuf fixes the following issues: Refresh fixes: - CVE-2025-4565: parsing of untrusted Protocol Buffers data containing an arbitrary number of recursive groups or messages can lead to crash due to RecursionError bsc1244663. - CVE-2026-0994: maxrecursiondepth limit can be bypass...