Vulnerability identifier: #VU48971

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-26413

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Gitlab Community Edition
Universal components / Libraries / Software for developers
GitLab Enterprise Edition
Universal components / Libraries / Software for developers

Vendor: GitLab, Inc

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to information disclosure via GraphQL starting. A remote attacker can access user emails.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 13.4.0 - 13.6.1

GitLab Enterprise Edition: 13.4.0 - 13.6.1

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External links
http://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26413.json
http://gitlab.com/gitlab-org/gitlab/-/issues/244275
http://hackerone.com/reports/972355

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.