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Medium 6.5Published Sep 15, 2020

CVE-2020-8927A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happ…

Updated under an hour ago ()

Does this affect you?

It affects google brotli and 9 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A buffer overflow exists in the Brotli library versions prior to 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 Brotli library to 1.0.8 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.

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CVSS
6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE)
CWE-130, CWE-120
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Modified
Record last updated
Jun 16, 2026
First seen by InfoSec Signals
Nov 1, 2026

Affected products

Affected products
google brotli
google:brotli
before 1.0.8
NVD
debian debian_linux
debian:debian_linux
9.0; 10.0
NVD
fedoraproject fedora
fedoraproject:fedora
31; 32; 33; 34; 35; 36
NVD
canonical ubuntu_linux
canonical:ubuntu_linux
16.04; 18.04; 20.04
NVD
opensuse leap
opensuse:leap
15.2
NVD
microsoft .net
microsoft:.net
from 5.0 through 5.0.14
NVD
microsoft .net_core
microsoft:.net_core
from 3.1 through 3.1.22
NVD
microsoft powershell
microsoft:powershell
from 7.0 before 7.0.9; from 7.1 before 7.1.6; from 7.2 before 7.2.2
NVD
microsoft visual_studio_2019
microsoft:visual_studio_2019
from 16.0 through 16.11
NVD
microsoft visual_studio_2022
microsoft:visual_studio_2022
from 17.0 through 17.0.7; 17.1
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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