CVE-2026-1990

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the ObjectWrapper constructor in the affected header file. An attacker can cause a denial of service by triggering a null pointer dereference through local access. Remediation There is no fixed version for...

CVE-2026-1990

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

CVE-2026-1990 oatpp Type.hpp ObjectWrapper null pointer dereference

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

CVE-2026-1990

The CVE-2026-1990 vulnerability affects oatpp up to 1.3.1, specifically the ObjectWrapper constructor in src/oatpp/data/type/Type.hpp. It causes a null pointer dereference and requires local access to exploit. Public disclosure of the exploit is noted; vendors have been informed but responses var...

CVE-2026-1990 oatpp Type.hpp ObjectWrapper null pointer dereference

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

CVE-2026-1990 oatpp Type.hpp ObjectWrapper null pointer dereference

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

EUVD-2026-5584

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

CVE-2026-1990

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

Oatpp-mcp code issue vulnerabilities

Oatpp-mcp is an implementation of a model context protocol under the Oat++ open-source project. Versions of oatpp-mcp 1.3.1 and earlier contained code vulnerabilities. These vulnerabilities stemmed from incorrect operations on the oatpp::data::type::ObjectWrapper::ObjectWrapper function in the fi...

CVE-2026-1990: NULL Pointer Dereference

A security vulnerability has been detected in oatpp up to 1.3.1. This impacts the function oatpp::data::type::ObjectWrapper::ObjectWrapper of the file src/oatpp/data/type/Type.hpp. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit ha...

PT-2026-6674

Name of the Vulnerable Software and Affected Versions oatpp versions up to 1.3.1 Description A security issue has been identified in oatpp. The issue involves a null pointer dereference within the oatpp::data::type::ObjectWrapper::ObjectWrapper function located in the src/oatpp/data/type/Type.hpp...

CVE-2025-6515 Reuse of session IDs in oatpp-mcp leads to session hijacking and prompt hijacking by remote attackers

The MCP SSE endpoint in oatpp-mcp returns an instance pointer as the session ID, which is not unique nor cryptographically secure. This allows network attackers with access to the oatpp-mcp server to guess future session IDs and hijack legitimate client MCP sessions, returning malicious responses...

CVE-2025-6515

The CVE concerns oatpp-mcp’s MCP SSE endpoint, where a session ID is derived from an instance pointer instead of a unique, cryptographically secure value. This enables a network attacker with access to the oatpp-mcp server to predict/guess future session IDs, hijack legitimate MCP sessions, and c...

CVE-2025-6515 Reuse of session IDs in oatpp-mcp leads to session hijacking and prompt hijacking by remote attackers

The MCP SSE endpoint in oatpp-mcp returns an instance pointer as the session ID, which is not unique nor cryptographically secure. This allows network attackers with access to the oatpp-mcp server to guess future session IDs and hijack legitimate client MCP sessions, returning malicious responses...

PT-2025-42788

Name of the Vulnerable Software and Affected Versions oatpp-mcp affected versions not specified Description The MCP SSE endpoint returns an instance pointer as the session ID, which is not unique or cryptographically secure. This allows network attackers with access to the oatpp-mcp server to gue...

CVE-2025-6515: Use of Insufficiently Random Values

The MCP SSE endpoint in oatpp-mcp returns an instance pointer as the session ID, which is not unique nor cryptographically secure. This allows network attackers with access to the oatpp-mcp server to guess future session IDs and hijack legitimate client MCP sessions, returning malicious responses...

Oatpp-mcp security feature vulnerability

oatpp-mcp is an Oat++ open source implementation of the Model Context Protocol. A security signature issue vulnerability exists in oatpp-mcp that stems from an MCP SSE endpoint returning an instance pointer as a session ID, which could lead to a session hijacking attack...

EUVD-2025-19006

Malicious code in bioql PyPI...

oatpp:fuzz_mapper: Bad-cast to Z__CLASS' (aka 'Test1') from invalid vptr in Test1::Z__PROPERTY_OFFSET_i8

Detailed Report: https://oss-fuzz.com/testcase?key=6285446981419008 Project: oatpp Fuzzing Engine: libFuzzer Fuzz Target: fuzzmapper Job Type: libfuzzerubsanoatpp Platform Id: linux Crash Type: Bad-cast Crash Address: 0x7ffedf76c8b0 Crash State: Bad-cast to ZCLASS' aka 'Test1' from invalid vptr...