CVE-2021-46878 | BDVDB-2026-199679 Detail

Description#

An issue was discovered in Treasure Data Fluent Bit 1.7.1, erroneous parsing in flb_pack_msgpack_to_json_format 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 and trick the victim opening it using the affect software, triggering use-after-free and execute arbitrary code on the target system.

Impact#

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Exploit#

History#

1. Version 12023-04-11Record published in the CVE List.
2. Version 22025-02-11Most recent update recorded in the CVE List.