CVE-2021-39889

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published: Oct 5, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-39896.1showdoc is vulnerable to URL Redirection to Untrusted Site CVE-2021-398909.8It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above.CVE-2021-398914.9In all versions of GitLab CE/EE since version 8.0, access tokens created as part of admin's impersonation of a user are not cleared at the e CVE-2021-398924.3In all versions of GitLab CE/EE since version 12.0, a lower privileged user can import users from projects that they don't have a maintainer CVE-2021-398937.5A potential DOS vulnerability was discovered in GitLab starting with version 9.1 that allowed parsing files without authorisation.CVE-2021-398945.4In all versions of GitLab CE/EE since version 8.0, a DNS rebinding vulnerability exists in Fogbugz importer which may be used by attackers t CVE-2021-398954.5In all versions of GitLab CE/EE since version 8.0, an attacker can set the pipeline schedules to be active in a project export so when an un CVE-2021-398963.8In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may b CVE-2021-398975.3Improper access control in GitLab CE/EE version 10.5 and above allowed subgroup members with inherited access to a project from a parent gro CVE-2021-398985.3In all versions of GitLab CE/EE since version 10.6, a project export leaks the external webhook token value which may allow access to the pr CVE-2021-398994.2In all versions of GitLab CE/EE, an attacker with physical access to a user’s machine may brute force the user’s password via the change pas CVE-2021-39906.5showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)