CVE-2019-18455 Denial of service in n/a
Attackers can cause a denial of service in GitLab by submitting nested GraphQL queries that trigger an infinite loop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-18455?
CVE-2019-18455 is a high-severity denial of service vulnerability in Gitlab Gitlab, published on 26 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in GitLab Community and Enterprise Edition 11 through 12.4 when building Nested GraphQL queries. It has a large or infinite loop.
Weakness: CWE-835
Which versions are affected by CVE-2019-18455?
It affects 1 product.
Products include Gitlab Gitlab.
How do I fix CVE-2019-18455?
No fix has been published for CVE-2019-18455 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-18455 being exploited?
There is no known exploitation of CVE-2019-18455 in the wild and no public exploit code.
Other vulnerabilities in Gitlab Gitlab
- CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound
- CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal
- CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control
- CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution
- CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)
Sources
Also known as GHSA-pgmq-fmcf-6fcm.