CVE-2019-15726

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-16 · updated 2026-06-17

Description

An issue was discovered in GitLab Community and Enterprise Edition through 12.2.1. Embedded images and media files in markdown could be pointed to an arbitrary server, which would reveal the IP address of clients requesting the file from that server.

Affected products

GitLab: before 12.0.8; from 12.1.0 before 12.1.8; from 12.2.0 before 12.2.3 — fixed in 12.0.8, 12.1.8, 12.2.3

How to fix

Upgrade to a fixed version: GitLab 12.0.8, 12.1.8, 12.2.3. Check the vendor advisory for mitigations.

References

https://about.gitlab.com/2019/08/29/security-release-gitlab-12-dot-2-dot-3-released/
https://gitlab.com/gitlab-org/gitlab-ce/issues/55115
https://about.gitlab.com/2019/08/29/security-release-gitlab-12-dot-2-dot-3-released/
https://gitlab.com/gitlab-org/gitlab-ce/issues/55115

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