CVE-2020-35963

PoC —

CVSS 3.1

7.8 high

EPSS

1%p69

Published

Jan 3, 2021 (Jan 3, 2021)

Modified

Jun 17, 2026

Description

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 calculation of the maximum gzip data-size expansion.

Vendors: treasuredata
Products: fluent bit
Weakness: CWE-787
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.3%)

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