A potential DOS vulnerability was discovered in GitLab CE/EE starting with version 12.6.

published 2020-11-17 5 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2020-13354 , EUVD-2020-5613

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

A potential DOS vulnerability was discovered in GitLab CE/EE starting with version 12.6. The container registry name check could cause exponential number of backtracks for certain user supplied values resulting in high CPU usage. Affected versions are: >=12.6, <13.3.9.

Patch / fix

fixed in 3

bitnami gitlab 13.3.9
gitlab gitlab 13.3.9
gitlab gitlab_enterprise 13.3.9

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P
OSV	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem	package	affected	fixed in
bitnami	gitlab	<13.3.9	13.3.9

Affected products

GitLab GitLab CE/EE

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

Technology feeds

GitLab rss critical rss

References

gitlab.com /gitlab-org/cves/-/blob/master/2020/CVE-2020-13354.json
vendor-advisory, advisory
gitlab.com /gitlab-org/gitlab/-/issues/220019
broken-link, web
hackerone.com /reports/869875
permissions-required, third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2020-13354
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: add affected deb and rpm records.

Summary