CVE-2021-36088

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

No affected versions have been published.

Timeline

Published
Jul 1, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-360897.8Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompCVE-2021-36097.0.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to coCVE-2021-360907.5When reading a specially crafted ZIP archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memorCVE-2021-360914.3Agents are able to list appointments in the calendars without required permissions. This issue affects: OTRS AG ((OTRS)) Community Edition: CVE-2021-360926.1It's possible to create an email which contains specially crafted link and it can be used to perform XSS attack. This issue affects: OTRS AGCVE-2021-360935.3It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. This issue affects: OTRS AG ((CVE-2021-360945.4It's possible to craft a request for appointment edit screen, which could lead to the XSS attack. This issue affects: OTRS AG ((OTRS)) CommuCVE-2021-360955.3Malicious attacker is able to find out valid user logins by using the "lost password" feature. This issue affects: OTRS AG ((OTRS)) CommunitCVE-2021-360964.9Generated Support Bundles contains private S/MIME and PGP keys if containing folder is not hidden. This issue affects: OTRS AG ((OTRS)) CommCVE-2021-360974.3Agents are able to lock the ticket without the "Owner" permission. Once the ticket is locked, it could be moved to the queue where the agentCVE-2021-36107.5A heap-based buffer overflow vulnerability was found in ImageMagick in versions prior to 7.0.11-14 in ReadTIFFImage() in coders/tiff.c. ThisCVE-2021-361008.8Specially crafted string in OTRS system configuration can allow the execution of any system command.
CVE-2021-36088: Critical severity, CVSS 9.8 | Vulnix