cbcvebase.
CVE-2021-39939
published 2021-12-13

CVE-2021-39939: An uncontrolled resource consumption vulnerability in GitLab Runner affecting all versions starting from 13.7 before 14.3.6, all versions starting from 14.4…

PriorityP434medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.91%
55.8th percentile
An uncontrolled resource consumption vulnerability in GitLab Runner affecting all versions starting from 13.7 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker triggering a job with a specially crafted docker image to exhaust resources on runner manager

Affected

8 ranges
VendorProductVersion rangeFixed in
gitlabgitlab
gitlabgitlab>= 13.7.0 < 14.3.614.3.6
gitlabgitlab>= 14.4.0 < 14.4.414.4.4
gitlabgitlab>= 14.5.0 < 14.5.214.5.2
gitlabgitlab_runner
gitlabgitlab_runner
gitlabgitlab_runner
gitlabgitlab_runner

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.