CVE-2020-36846

CRITICAL

IO::Compress::Brotli <0.007 - Buffer Overflow

Title source: llm
STIX 2.1

Description

A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

Scores

CVSS v3 9.8
EPSS 0.0053
EPSS Percentile 41.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-1395
Status published
Products (1)
TIMLEGGE/IO::Compress::Brotli < 0.007
Published May 30, 2025
Tracked Since Feb 18, 2026