Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443
Published 2022-01-18 17:15:09
Updated 2022-09-03 03:30:26
Source GitLab Inc.
View at NVD,   CVE.org
Vulnerability category: Server-side request forgery (SSRF)

Exploit prediction scoring system (EPSS) score for CVE-2021-39927

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39927

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.5
LOW AV:N/AC:M/Au:S/C:N/I:P/A:N
6.8
2.9
NIST
3.5
LOW CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
1.8
1.4
GitLab Inc.
4.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.8
1.4
NIST

CWE ids for CVE-2021-39927

  • The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-39927

Products affected by CVE-2021-39927

  • Gitlab » Gitlab » Community Edition
    Versions from including (>=) 14.6.0 and up to, including, (<=) 14.6.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
  • Gitlab » Gitlab » Community Edition
    Versions from including (>=) 14.5.0 and up to, including, (<=) 14.5.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 14.6.0 and up to, including, (<=) 14.6.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
  • Gitlab » Gitlab » Community Edition
    Versions from including (>=) 8.4 and up to, including, (<=) 14.4.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 14.5.0 and up to, including, (<=) 14.5.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 8.4 and up to, including, (<=) 14.4.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
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