CVE-2021-36088

CRITICAL 9.8CVE-2021-36088 · Published 01/07/2021 · updated 17/06/2026

In short

CVE-2021-36088 is a CRITICAL (CVSS 9.8) vulnerability affecting fluent bit (treasuredata).
Chance of exploitation in the next 30 days (EPSS): 2.4%, higher than 83.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
fluent bit treasuredata	`≥ 1.7.0, ≤ 1.7.4`	No fix yet

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).

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Package

Affected versions

Patched versions

≥ 1.7.0, ≤ 1.7.4

No fix yet

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