CVE-2021-27186

PoC ×2—

CVSS 3.1

7.5 high

EPSS

2%p79

Published

Feb 10, 2021 (Feb 10, 2021)

Modified

Jun 17, 2026

Description

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/v1/metrics.c.

Vendors: treasuredata
Products: fluent bit
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.0%)

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