CVE-2025-12978

all versions

Fluent Bit in_http, in_splunk, and in_elasticsearch input plugins contain a flaw in the tag_key validation logic that fails to enf

5.4MEDIUM

CVE-2025-12977

all versions

Fluent Bit in_http, in_splunk, and in_elasticsearch input plugins fail to sanitize tag_key inputs. An attacker with network access

9.1CRITICAL

CVE-2025-12972

all versions

Fluent Bit out_file plugin does not properly sanitize tag values when deriving output file names. When the File option is omitted,

5.3MEDIUM

CVE-2025-12970

all versions

The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without valid

8.8HIGH

CVE-2025-12969

all versions

Fluent Bit in_forward input plugin does not properly enforce the security.users authentication mechanism under certain configurati

6.5MEDIUM

CVE-2025-29478

all versions

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the cfl_list_size in cfl_list.h:165.

5.5MEDIUM

CVE-2025-29477

all versions

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the function consume_event.

5.5MEDIUM

CVE-2024-50609

all versions

An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and por

7.5HIGH

CVE-2024-50608

all versions

An issue was discovered in Fluent Bit 3.1.9. When the Prometheus Remote Write input plugin is running and listening on an IP addre

7.5HIGH

CVE-2024-4323

>= 2.0.7 and < 2.2.3

A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing

9.8CRITICAL

CVE-2024-23722

>= 2.1.8 and < 2.2.2

In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x

7.5HIGH

CVE-2024-26455

all versions

fluent-bit 2.2.2 contains a Use-After-Free vulnerability in /fluent-bit/plugins/custom_calyptia/calyptia.c.

7.5HIGH

CVE-2021-46879

all versions

An issue was discovered in Treasure Data Fluent Bit 1.7.1, a wrong variable is used to get the msgpack data resulting in a heap ov

7.8HIGH

CVE-2021-46878

all versions

An issue was discovered in Treasure Data Fluent Bit 1.7.1, erroneous parsing in flb_pack_msgpack_to_json_format leads to type conf

7.8HIGH

CVE-2021-36088

>= 1.7.0 and <= 1.7.4

Fluent Bit (aka fluent-bit) 1.7.0 through 1.7.4 has a double free in flb_free (called from flb_parser_json_do and flb_parser_do).

9.8CRITICAL

CVE-2021-27186

all versions

Fluent Bit 1.6.10 has a NULL pointer dereference when an flb_malloc return value is not validated by flb_avro.c or http_server/api

7.5HIGH

CVE-2020-35963

< 1.6.4

flb_gzip_compress in flb_gzip.c in Fluent Bit before 1.6.4 has an out-of-bounds write because it does not use the correct calculat

7.8HIGH

CVE-2019-9749

<= 1.0.4

An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it

7.5HIGH