CVE-2021-36088 describes a critical double free vulnerability in Fluent Bit versions 1.7.0 through 1.7.4, specifically within the flb_free function called by flb_parser_json_do and flb_parser_do. This flaw carries a CVSS score of 9.8 (Critical), indicating it is remotely exploitable with low attack complexity, requiring no user interaction, and could lead to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.7.0, <= 1.7.4CPE matchmatch criteria | cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.