CVE-2021-39893

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A potential DOS vulnerability was discovered in GitLab starting with version 9.1 that allowed parsing files without authorisation.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-862

Affected software

VendorProductVersions
GitLabGitLab>=9.1, <14.1.7; >=14.2, <14.2.5; >=14.3, <14.3.1

References

Timeline

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

Related CVEs from 2021

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 tCVE-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 unCVE-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 bCVE-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 groCVE-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 prCVE-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 pasCVE-2021-39906.5showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)CVE-2021-399002.7Information disclosure from SendEntry in GitLab starting with 10.8 allowed exposure of full URL of artifacts stored in object-storage with aCVE-2021-399012.7In all versions of GitLab CE/EE since version 11.10, an admin of a group can see the SCIM token of that group by visiting a specific endpoinCVE-2021-399024.3Incorrect Authorization in GitLab CE/EE 13.4 or above allows a user with guest membership in a project to modify the severity of an incidentCVE-2021-399036.5In all versions of GitLab CE/EE since version 13.0, a privileged user, through an API call, can change the visibility level of a group or a CVE-2021-399044.3An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions s
CVE-2021-39893: High severity, CVSS 7.5 | Vulnix