CVE-2018-17452
There is Server-Side Request Forgery (SSRF) via a loopback address to the validate_localhost function in url_blocker.rb.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in GitLab Community and Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. There is Server-Side Request Forgery (SSRF) via a loopback address to the validate_localhost function in url_blocker.rb.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.74% probability · 54th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- gitlab/gitlab
- Source
- cve@mitre.org
EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://about.gitlab.com/blog/categories/releases/Release Notes
- https://about.gitlab.com/releases/2018/10/01/security-release-gitlab-11-dot-3-dot-1-released/Release Notes, Vendor Advisory
- https://about.gitlab.com/blog/categories/releases/Release Notes
- https://about.gitlab.com/releases/2018/10/01/security-release-gitlab-11-dot-3-dot-1-released/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.