CVE-2026-42600

Summary of the vulnerability (CVE-2026-42600) : MinIO’s ReadMultiple internode storage-REST endpoint is vulnerable to path traversal when processing a msgpack-encoded ReadMultipleReq body. An attacker holding the cluster root JWT can craft a request to POST /minio/storage/{drivePath}/v63/rmpl wit...

GHSA-H9Q6-HC68-35RP Denial of service in github.com/shamaton/msgpack

The msgpack decoder fails to properly validate the input buffer length when processing truncated fixext data format codes 0xd4-0xd8. This can lead to an out-of-bounds read and a runtime panic, allowing a denial of service attack...

CVE-2026-2454

Mattermost exposes a DoS vulnerability in the Calls plugin via malformed msgpack frames over WebSocket. Affected versions: 11.3.x ≤ 11.3.0, 11.2.x ≤ 11.2.2, 10.11.x ≤ 10.11.10. Root cause: incorrect handling of reported array lengths, enabling a malicious user to trigger OOM and crash the server....

Deserialization of Untrusted Data

Overview langgraph is a Building stateful, multi-actor applications with LLMs Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the msgpack-encoded checkpoints. An attacker can execute arbitrary code by supplying a crafted msgpack-encoded payload to the...

Deserialization of Untrusted Data

Overview langgraph-checkpoint is a library with base interfaces for LangGraph checkpoint savers. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the msgpack-encoded checkpoints. An attacker can execute arbitrary code by supplying a crafted msgpack-encoded...

EUVD-2026-9860

LangGraph checkpoint loading has unsafe msgpack deserialization...

msgpacker security vulnerability

msgpacker is a fast MessagePack NodeJS/JavaScript implementation. A security vulnerability exists in versions of msgpacker prior to 1.10.1, which stems from the fact that when decoding a user-supplied MessagePack message, an attacker can craft the message in such a way that the decoder triggers...

CVE-2021-46878

An issue was discovered in Treasure Data Fluent Bit 1.7.1, erroneous parsing in flbpackmsgpacktojsonformat leads to type confusion bug that interprets whatever is on the stack as msgpack maps and arrays, leading to use-after-free. This can be used by an attacker to craft a specially craft file an...